diff --git a/doc/TOOL_API.md b/doc/TOOL_API.md
index 4d282f9..447c5e1 100644
--- a/doc/TOOL_API.md
+++ b/doc/TOOL_API.md
@@ -159,6 +159,21 @@ info.add('title', 'content');
 info.add('location', () => location.href);
 ```
 
+### get
+
+Get info or infos.
+
+|Name  |Type           |Desc        |
+|------|---------------|------------|
+|name  |string         |Info name   |
+|return|string function|Info content|
+
+```javascript
+info.add('title', 'content')
+info.get(); // -> [{name: 'title', val: 'content'}]
+info.get('title') // -> 'content'
+```
+
 ### remove
 
 Remove specified info.
diff --git a/doc/UTIL_API.md b/doc/UTIL_API.md
index 88368d9..4bf4a90 100644
--- a/doc/UTIL_API.md
+++ b/doc/UTIL_API.md
@@ -1,7 +1,7 @@
-# Eruda Util Documentation
-
-## $ 
-
+# Eruda Util Documentation
+
+## $ 
+
 jQuery like style dom manipulator.
 
 ### Available methods
@@ -19,10 +19,10 @@ $btn.on('click', function ()
 {
     // Do something...
 });
-```
-
-## $attr 
-
+```
+
+## $attr 
+
 Element attribute manipulation.
 
 Get the value of an attribute for the first element in the set of matched elements.
@@ -63,10 +63,10 @@ $attr('#test', {
     'attr1': 'test',
     'attr2': 'test'
 });
-```
-
-## $class 
-
+```
+
+## $class 
+
 Element class manipulations.
 
 ### add
@@ -114,10 +114,10 @@ $class.remove('#test', 'class1');
 $class.has('#test', 'class1'); // -> false
 $class.toggle('#test', 'class1');
 $class.has('#test', 'class1'); // -> true
-```
-
-## $css 
-
+```
+
+## $css 
+
 Element css manipulation.
 
 Get the computed style properties for the first element in the set of matched elements.
@@ -148,18 +148,18 @@ $css('#test', {
 });
 $css('#test', 'display', 'block');
 $css('#test', 'color'); // -> #fff
-```
-
-## $data 
-
+```
+
+## $data 
+
 Wrapper of $attr, adds data- prefix to keys.
 
 ```javascript
 $data('#test', 'attr1', 'eustia');
-```
-
-## $event 
-
+```
+
+## $event 
+
 bind events to certain dom elements.
 
 ```javascript
@@ -169,10 +169,10 @@ function clickHandler()
 }
 $event.on('#test', 'click', clickHandler);
 $event.off('#test', 'click', clickHandler);
-```
-
-## $insert 
-
+```
+
+## $insert 
+
 Insert html on different position.
 
 ### before
@@ -206,10 +206,10 @@ $insert.prepend('#test', '<div>licia</div>');
 // -> <div id="test"><div>licia</div><div class="mark"></div></div>
 $insert.append('#test', '<div>licia</div>');
 // -> <div id="test"><div class="mark"></div><div>licia</div></div>
-```
-
-## $offset 
-
+```
+
+## $offset 
+
 Get the position of the element in document.
 
 |Name   |Type                |Desc                  |
@@ -218,10 +218,10 @@ Get the position of the element in document.
 
 ```javascript
 $offset('#test'); // -> {left: 0, top: 0, width: 0, height: 0}
-```
-
-## $property 
-
+```
+
+## $property 
+
 Element property html, text, val getter and setter.
 
 ### html
@@ -243,10 +243,10 @@ set the value of every matched element.
 ```javascript
 $property.html('#test', 'licia');
 $property.html('#test'); // -> licia
-```
-
-## $remove 
-
+```
+
+## $remove 
+
 Remove the set of matched elements from the DOM.
 
 |Name   |Type                |Desc              |
@@ -255,10 +255,10 @@ Remove the set of matched elements from the DOM.
 
 ```javascript
 $remove('#test');
-```
-
-## $safeEls 
-
+```
+
+## $safeEls 
+
 Convert value into an array, if it's a string, do querySelector.
 
 |Name  |Type                |Desc             |
@@ -268,10 +268,10 @@ Convert value into an array, if it's a string, do querySelector.
 
 ```javascript
 $safeEls('.test'); // -> Array of elements with test class
-```
-
-## $show 
-
+```
+
+## $show 
+
 Show elements.
 
 |Name   |Type                |Desc            |
@@ -280,10 +280,10 @@ Show elements.
 
 ```javascript
 $show('#test');
-```
-
-## Class 
-
+```
+
+## Class 
+
 Create JavaScript class.
 
 |Name     |Type    |Desc                             |
@@ -326,10 +326,10 @@ var Student = People.extend({
 var a = new Student('allen', 17, 'Hogwarts');
 a.introduce(); // -> 'I am allen, 17 years old. \n I study at Hogwarts.'
 Student.is(a); // -> true
-```
-
-## Emitter 
-
+```
+
+## Emitter 
+
 Event emitter class which provides observer pattern.
 
 ### on
@@ -371,10 +371,10 @@ var event = new Emitter();
 event.on('test', function () { console.log('test') });
 event.emit('test'); // Logs out 'test'.
 Emitter.mixin({});
-```
-
-## Enum 
-
+```
+
+## Enum 
+
 Enum type implementation.
 
 ### constructor
@@ -396,10 +396,10 @@ if (val === importance.CRITICAL)
 {
     // Do something.
 }
-```
-
-## LocalStore 
-
+```
+
+## LocalStore 
+
 LocalStorage wrapper.
 
 Extend from Store.
@@ -414,10 +414,10 @@ Extend from Store.
 ```javascript
 var store = new LocalStore('licia');
 store.set('name', 'licia');
-```
-
-## Logger 
-
+```
+
+## Logger 
+
 Simple logger with level filter.
 
 ### constructor
@@ -466,10 +466,10 @@ logger.on('debug', function (argList)
 {
     // Affected by log level.
 });
-```
-
-## MutationObserver 
-
+```
+
+## MutationObserver 
+
 Safe MutationObserver, does nothing if MutationObserver is not supported.
 
 ```javascript
@@ -479,10 +479,10 @@ var observer = new MutationObserver(function (mutations)
 });
 observer.observe(document.htmlElement);
 observer.disconnect();
-```
-
-## Select 
-
+```
+
+## Select 
+
 Simple wrapper of querySelectorAll to make dom selection easier.
 
 ### constructor
@@ -513,10 +513,10 @@ $test.find('.test').each(function (idx, element)
 {
     // Manipulate dom nodes
 });
-```
-
-## Store 
-
+```
+
+## Store 
+
 Memory storage.
 
 Extend from Emitter.
@@ -593,10 +593,10 @@ store.on('change', function (key, newVal, oldVal)
 {
     // It triggers whenever set is called.
 });
-```
-
-## Url 
-
+```
+
+## Url 
+
 Simple url manipulator.
 
 ### constructor
@@ -666,10 +666,10 @@ console.log(url.port); // -> '8080'
 url.query.foo = 'bar';
 url.rmQuery('eruda');
 utl.toString(); // -> 'http://example.com:8080/?foo=bar'
-```
-
-## ajax 
-
+```
+
+## ajax 
+
 Perform an asynchronous HTTP request.
 
 |Name   |Type  |Desc        |
@@ -678,7 +678,7 @@ Perform an asynchronous HTTP request.
 
 Available options:
 
-|Name                                         |Type         |Desc                      |
+|Name                                         |Type         |Desc                       |
 |---------------------------------------------|-------------|---------------------------|
 |url                                          |string       |Request url                |
 |data                                         |string object|Request data               |
@@ -720,10 +720,10 @@ ajax.get('http://example.com', {}, function (data)
 {
     // ...
 });
-```
-
-## allKeys 
-
+```
+
+## allKeys 
+
 Retrieve all the names of object's own and inherited properties.
 
 |Name  |Type  |Desc                       |
@@ -737,10 +737,10 @@ Retrieve all the names of object's own and inherited properties.
 var obj = Object.create({zero: 0});
 obj.one = 1;
 allKeys(obj) // -> ['zero', 'one']
-```
-
-## before 
-
+```
+
+## before 
+
 Create a function that invokes less than n times.
 
 |Name  |Type    |Desc                                            |
@@ -754,10 +754,10 @@ Subsequent calls to the created function return the result of the last fn invoca
 ```javascript
 $(element).on('click', before(5, function() {}));
 // -> allow function to be call 4 times at last.
-```
-
-## camelCase 
-
+```
+
+## camelCase 
+
 Convert string to "camelCase".
 
 |Name  |Type  |Desc              |
@@ -770,10 +770,10 @@ camelCase('foo-bar'); // -> fooBar
 camelCase('foo bar'); // -> fooBar
 camelCase('foo_bar'); // -> fooBar
 camelCase('foo.bar'); // -> fooBar
-```
-
-## castPath 
-
+```
+
+## castPath 
+
 Cast value into a property path array.
 
 |Name  |Type  |Desc               |
@@ -787,10 +787,10 @@ castPath('a.b.c'); // -> ['a', 'b', 'c']
 castPath(['a']); // -> ['a']
 castPath('a[0].b'); // -> ['a', '0', 'b']
 castPath('a.b.c', {'a.b.c': true}); // -> ['a.b.c']
-```
-
-## chunk 
-
+```
+
+## chunk 
+
 Split array into groups the length of given size.
 
 |Name  |Type  |Desc                |
@@ -802,10 +802,10 @@ Split array into groups the length of given size.
 chunk([1, 2, 3, 4], 2); // -> [[1, 2], [3, 4]]
 chunk([1, 2, 3, 4], 3); // -> [[1, 2, 3], [4]]
 chunk([1, 2, 3, 4]); // -> [[1], [2], [3], [4]]
-```
-
-## clamp 
-
+```
+
+## clamp 
+
 Clamp number within the inclusive lower and upper bounds.
 
 |Name   |Type  |Desc           |
@@ -821,10 +821,10 @@ clamp(10, -5, 5); // -> 5
 clamp(2, -5, 5); // -> 2
 clamp(10, 5); // -> 5
 clamp(2, 5); // -> 2
-```
-
-## clone 
-
+```
+
+## clone 
+
 Create a shallow-copied clone of the provided plain object.
 
 Any nested objects or arrays will be copied by reference, not duplicated.
@@ -836,10 +836,25 @@ Any nested objects or arrays will be copied by reference, not duplicated.
 
 ```javascript
 clone({name: 'eustia'}); // -> {name: 'eustia'}
-```
+```
+
+## cloneDeep 
+
+Recursively clone value.
 
-## concat 
+|Name  |Type|Desc             |
+|------|----|-----------------|
+|val   |*   |Value to clone   |
+|return|*   |Deep cloned Value|
 
+```javascript
+var obj = [{a: 1}, {a: 2}];
+var obj2 = cloneDeep(obj);
+console.log(obj[0] === obj2[1]); // -> false
+```
+
+## concat 
+
 Concat multiple arrays into a single array.
 
 |Name  |Type |Desc              |
@@ -849,10 +864,10 @@ Concat multiple arrays into a single array.
 
 ```javascript
 concat([1, 2], [3], [4, 5]); // -> [1, 2, 3, 4, 5]
-```
-
-## contain 
-
+```
+
+## contain 
+
 Check if the value is present in the list.
 
 |Name  |Type        |Desc                                |
@@ -864,10 +879,10 @@ Check if the value is present in the list.
 ```javascript
 contain([1, 2, 3], 1); // -> true
 contain({a: 1, b: 2}, 1); // -> true
-```
-
-## cookie 
-
+```
+
+## cookie 
+
 Simple api for handling browser cookies.
 
 ### get
@@ -904,20 +919,20 @@ Remove cookie value.
 cookie.set('a', '1', {path: '/'});
 cookie.get('a'); // -> '1'
 cookie.remove('a');
-```
-
-## createAssigner 
-
+```
+
+## createAssigner 
+
 Used to create extend, extendOwn and defaults.
 
 |Name    |Type    |Desc                          |
 |--------|--------|------------------------------|
 |keysFn  |function|Function to get object keys   |
 |defaults|boolean |No override when set to true  |
-|return  |function|Result function, extend...    |
-
-## dateFormat 
-
+|return  |function|Result function, extend...    |
+
+## dateFormat 
+
 Simple but extremely useful date format function.
 
 |Name           |Type   |Desc                 |
@@ -961,10 +976,10 @@ Simple but extremely useful date format function.
 dateFormat('isoDate'); // -> 2016-11-19
 dateFormat('yyyy-mm-dd HH:MM:ss'); // -> 2016-11-19 19:00:04
 dateFormat(new Date(), 'yyyy-mm-dd'); // -> 2016-11-19
-```
-
-## decodeUriComponent 
-
+```
+
+## decodeUriComponent 
+
 Better decodeURIComponent that does not throw if input is invalid.
 
 |Name  |Type  |Desc            |
@@ -975,10 +990,10 @@ Better decodeURIComponent that does not throw if input is invalid.
 ```javascript
 decodeUriComponent('%%25%'); // -> '%%%'
 decodeUriComponent('%E0%A4%A'); // -> '\xE0\xA4%A'
-```
-
-## defaults 
-
+```
+
+## defaults 
+
 Fill in undefined properties in object with the first value present in the following list of defaults objects.
 
 |Name  |Type  |Desc              |
@@ -989,10 +1004,10 @@ Fill in undefined properties in object with the first value present in the follo
 
 ```javascript
 defaults({name: 'RedHood'}, {name: 'Unknown', age: 24}); // -> {name: 'RedHood', age: 24}
-```
-
-## delegate 
-
+```
+
+## delegate 
+
 Event delegation.
 
 ### add
@@ -1018,10 +1033,10 @@ function clickHandler()
 }
 delegate.add(container, 'click', '.children', clickHandler);
 delegate.remove(container, 'click', '.children', clickHandler);
-```
-
-## detectBrowser 
-
+```
+
+## detectBrowser 
+
 Detect browser info using ua.
 
 |Name                    |Type  |Desc                              |
@@ -1037,18 +1052,18 @@ if (browser.name === 'ie' && browser.version < 9)
 {
     // Do something about old IE...
 }
-```
-
-## detectMocha 
-
+```
+
+## detectMocha 
+
 Detect if mocha is running.
 
 ```javascript
 detectMocha(); // -> True if mocha is running.
-```
-
-## detectOs 
-
+```
+
+## detectOs 
+
 Detect operating system using ua.
 
 |Name                    |Type  |Desc                 |
@@ -1063,10 +1078,10 @@ if (detectOs() === 'ios')
 {
     // Do something about ios...
 }
-```
-
-## each 
-
+```
+
+## each 
+
 Iterate over elements of collection and invokes iteratee for each element.
 
 |Name    |Type        |Desc                          |
@@ -1077,10 +1092,10 @@ Iterate over elements of collection and invokes iteratee for each element.
 
 ```javascript
 each({'a': 1, 'b': 2}, function (val, key) {});
-```
-
-## endWith 
-
+```
+
+## endWith 
+
 Check if string ends with the given target string.
 
 |Name  |Type   |Desc                           |
@@ -1091,10 +1106,10 @@ Check if string ends with the given target string.
 
 ```javascript
 endWith('ab', 'b'); // -> true
-```
-
-## escape 
-
+```
+
+## escape 
+
 Escapes a string for insertion into HTML, replacing &, <, >, ", `, and ' characters.
 
 |Name  |Type  |Desc            |
@@ -1104,10 +1119,10 @@ Escapes a string for insertion into HTML, replacing &, <, >, ", `, and ' charact
 
 ```javascript
 escape('You & Me'); -> // -> 'You &amp; Me'
-```
-
-## escapeJsStr 
-
+```
+
+## escapeJsStr 
+
 Escape string to be a valid JavaScript string literal between quotes.
 
 http://www.ecma-international.org/ecma-262/5.1/#sec-7.8.4
@@ -1119,14 +1134,14 @@ http://www.ecma-international.org/ecma-262/5.1/#sec-7.8.4
 
 ```javascript
 escapeJsStr('\"\n'); // -> '\\"\\\\n'
-```
-
-## escapeJsonStr 
-
-Escape json string.
-
-## escapeRegExp 
-
+```
+
+## escapeJsonStr 
+
+Escape json string.
+
+## escapeRegExp 
+
 Escape special chars to be used as literals in RegExp constructors.
 
 |Name  |Type  |Desc            |
@@ -1136,14 +1151,14 @@ Escape special chars to be used as literals in RegExp constructors.
 
 ```javascript
 escapeRegExp('[licia]'); // -> '\\[licia\\]'
-```
-
-## evalCss 
-
-Eval css.
-
-## extend 
-
+```
+
+## evalCss 
+
+Eval css.
+
+## extend 
+
 Copy all of the properties in the source objects over to the destination object.
 
 |Name  |Type  |Desc              |
@@ -1154,10 +1169,10 @@ Copy all of the properties in the source objects over to the destination object.
 
 ```javascript
 extend({name: 'RedHood'}, {age: 24}); // -> {name: 'RedHood', age: 24}
-```
-
-## extendOwn 
-
+```
+
+## extendOwn 
+
 Like extend, but only copies own properties over to the destination object.
 
 |Name  |Type  |Desc              |
@@ -1168,10 +1183,10 @@ Like extend, but only copies own properties over to the destination object.
 
 ```javascript
 extendOwn({name: 'RedHood'}, {age: 24}); // -> {name: 'RedHood', age: 24}
-```
-
-## fileSize 
-
+```
+
+## fileSize 
+
 Turn bytes into human readable file size.
 
 |Name  |Type  |Desc              |
@@ -1185,10 +1200,10 @@ fileSize(1500); // -> '1.46K'
 fileSize(1500000); // -> '1.43M'
 fileSize(1500000000); // -> '1.4G'
 fileSize(1500000000000); // -> '1.36T'
-```
-
-## filter 
-
+```
+
+## filter 
+
 Iterates over elements of collection, returning an array of all the values that pass a truth test.
 
 |Name     |Type    |Desc                                   |
@@ -1203,10 +1218,10 @@ filter([1, 2, 3, 4, 5], function (val)
 {
     return val % 2 === 0;
 }); // -> [2, 4]
-```
-
-## freeze 
-
+```
+
+## freeze 
+
 Shortcut for Object.freeze.
 
 Use Object.defineProperties if Object.freeze is not supported.
@@ -1221,22 +1236,22 @@ var a = {b: 1};
 freeze(a);
 a.b = 2;
 console.log(a); // -> {b: 1}
-```
-
-## fullUrl 
-
-Add origin to url if needed.
-
-## getFileName 
-
-Extract file name from url.
-
-## getObjType 
-
-Get object type.
-
-## has 
-
+```
+
+## fullUrl 
+
+Add origin to url if needed.
+
+## getFileName 
+
+Extract file name from url.
+
+## getObjType 
+
+Get object type.
+
+## has 
+
 Checks if key is a direct property.
 
 |Name  |Type   |Desc                            |
@@ -1247,10 +1262,10 @@ Checks if key is a direct property.
 
 ```javascript
 has({one: 1}, 'one'); // -> true
-```
-
-## identity 
-
+```
+
+## identity 
+
 Return the first argument given.
 
 |Name  |Type|Desc       |
@@ -1260,10 +1275,10 @@ Return the first argument given.
 
 ```javascript
 identity('a'); // -> 'a'
-```
-
-## idxOf 
-
+```
+
+## idxOf 
+
 Get the index at which the first occurrence of value.
 
 |Name     |Type  |Desc                |
@@ -1274,10 +1289,10 @@ Get the index at which the first occurrence of value.
 
 ```javascript
 idxOf([1, 2, 1, 2], 2, 2); // -> 3
-```
-
-## inherits 
-
+```
+
+## inherits 
+
 Inherit the prototype methods from one constructor into another.
 
 |Name      |Type    |Desc       |
@@ -1303,10 +1318,10 @@ function Student(name)
 inherits(Student, People);
 var s = new Student('RedHood');
 s.getName(); // -> 'RedHood'
-```
-
-## isArgs 
-
+```
+
+## isArgs 
+
 Check if value is classified as an arguments object.
 
 |Name  |Type   |Desc                                |
@@ -1318,10 +1333,10 @@ Check if value is classified as an arguments object.
 (function () {
     isArgs(arguments); // -> true
 })();
-```
-
-## isArr 
-
+```
+
+## isArr 
+
 Check if value is an `Array` object.
 
 |Name  |Type   |Desc                              |
@@ -1332,10 +1347,10 @@ Check if value is an `Array` object.
 ```javascript
 isArr([]); // -> true
 isArr({}); // -> false
-```
-
-## isArrLike 
-
+```
+
+## isArrLike 
+
 Check if value is array-like.
 
 |Name  |Type   |Desc                       |
@@ -1349,10 +1364,10 @@ Check if value is array-like.
 isArrLike('test'); // -> true
 isArrLike(document.body.children); // -> true;
 isArrLike([1, 2, 3]); // -> true
-```
-
-## isBool 
-
+```
+
+## isBool 
+
 Check if value is a boolean primitive.
 
 |Name  |Type   |Desc                      |
@@ -1364,22 +1379,22 @@ Check if value is a boolean primitive.
 isBool(true); // -> true
 isBool(false); // -> true
 isBool(1); // -> false
-```
-
-## isBrowser 
-
+```
+
+## isBrowser 
+
 Check if running in a browser.
 
 ```javascript
 console.log(isBrowser); // -> true if running in a browser
-```
-
-## isCrossOrig 
-
-Check if a url is cross origin.
-
-## isDate 
-
+```
+
+## isCrossOrig 
+
+Check if a url is cross origin.
+
+## isDate 
+
 Check if value is classified as a Date object.
 
 |Name  |Type   |Desc                          |
@@ -1389,10 +1404,10 @@ Check if value is classified as a Date object.
 
 ```javascript
 isDate(new Date()); // -> true
-```
-
-## isEl 
-
+```
+
+## isEl 
+
 Check if value is a DOM element.
 
 |Name  |Type   |Desc                          |
@@ -1402,10 +1417,10 @@ Check if value is a DOM element.
 
 ```javascript
 isEl(document.body); // -> true
-```
-
-## isEmpty 
-
+```
+
+## isEmpty 
+
 Check if value is an empty object or array.
 
 |Name  |Type   |Desc                  |
@@ -1417,10 +1432,10 @@ Check if value is an empty object or array.
 isEmpty([]); // -> true
 isEmpty({}); // -> true
 isEmpty(''); // -> true
-```
-
-## isErr 
-
+```
+
+## isErr 
+
 Check if value is an error.
 
 |Name  |Type   |Desc                     |
@@ -1430,14 +1445,14 @@ Check if value is an error.
 
 ```javascript
 isErr(new Error()); // -> true
-```
-
-## isErudaEl 
-
-See if an element is within eruda.
-
-## isFn 
-
+```
+
+## isErudaEl 
+
+See if an element is within eruda.
+
+## isFn 
+
 Check if value is a function.
 
 |Name  |Type   |Desc                       |
@@ -1450,10 +1465,10 @@ Generator function is also classified as true.
 ```javascript
 isFn(function() {}); // -> true
 isFn(function*() {}); // -> true
-```
-
-## isMatch 
-
+```
+
+## isMatch 
+
 Check if keys and values in src are contained in obj.
 
 |Name  |Type   |Desc                              |
@@ -1464,18 +1479,18 @@ Check if keys and values in src are contained in obj.
 
 ```javascript
 isMatch({a: 1, b: 2}, {a: 1}); // -> true
-```
-
-## isMiniProgram 
-
+```
+
+## isMiniProgram 
+
 Check if running in wechat mini program.
 
 ```javascript
 console.log(isMiniProgram); // -> true if running in mini program.
-```
-
-## isMobile 
-
+```
+
+## isMobile 
+
 Check whether client is using a mobile browser using ua.
 
 |Name                    |Type   |Desc                                 |
@@ -1485,10 +1500,10 @@ Check whether client is using a mobile browser using ua.
 
 ```javascript
 isMobile(navigator.userAgent);
-```
-
-## isNaN 
-
+```
+
+## isNaN 
+
 Check if value is an NaN.
 
 |Name  |Type   |Desc                   |
@@ -1501,10 +1516,10 @@ Undefined is not an NaN, different from global isNaN function.
 ```javascript
 isNaN(0); // -> false
 isNaN(NaN); // -> true
-```
-
-## isNative 
-
+```
+
+## isNative 
+
 Check if value is a native function.
 
 |Name  |Type   |Desc                              |
@@ -1515,10 +1530,10 @@ Check if value is a native function.
 ```javascript
 isNative(function () {}); // -> false
 isNative(Math.min); // -> true
-```
-
-## isNil 
-
+```
+
+## isNil 
+
 Check if value is null or undefined, the same as value == null.
 
 |Name  |Type   |Desc                              |
@@ -1533,10 +1548,10 @@ isNil(undefined); // -> true
 isNil(false); // -> false
 isNil(0); // -> false
 isNil([]); // -> false
-```
-
-## isNull 
-
+```
+
+## isNull 
+
 Check if value is an Null.
 
 |Name  |Type   |Desc                    |
@@ -1546,10 +1561,10 @@ Check if value is an Null.
 
 ```javascript
 isNull(null); // -> true
-```
-
-## isNum 
-
+```
+
+## isNum 
+
 Check if value is classified as a Number primitive or object.
 
 |Name  |Type   |Desc                                 |
@@ -1561,10 +1576,10 @@ Check if value is classified as a Number primitive or object.
 isNum(5); // -> true
 isNum(5.1); // -> true
 isNum({}); // -> false
-```
-
-## isObj 
-
+```
+
+## isObj 
+
 Check if value is the language type of Object.
 
 |Name  |Type   |Desc                      |
@@ -1577,10 +1592,10 @@ Check if value is the language type of Object.
 ```javascript
 isObj({}); // -> true
 isObj([]); // -> true
-```
-
-## isRegExp 
-
+```
+
+## isRegExp 
+
 Check if value is a regular expression.
 
 |Name  |Type   |Desc                                 |
@@ -1590,10 +1605,10 @@ Check if value is a regular expression.
 
 ```javascript
 isRegExp(/a/); // -> true
-```
-
-## isStr 
-
+```
+
+## isStr 
+
 Check if value is a string primitive.
 
 |Name  |Type   |Desc                               |
@@ -1603,10 +1618,10 @@ Check if value is a string primitive.
 
 ```javascript
 isStr('licia'); // -> true
-```
-
-## isUndef 
-
+```
+
+## isUndef 
+
 Check if value is undefined.
 
 |Name  |Type   |Desc                      |
@@ -1617,10 +1632,10 @@ Check if value is undefined.
 ```javascript
 isUndef(void 0); // -> true
 isUndef(null); // -> false
-```
-
-## kebabCase 
-
+```
+
+## kebabCase 
+
 Convert string to "kebabCase".
 
 |Name  |Type  |Desc              |
@@ -1633,10 +1648,10 @@ kebabCase('fooBar'); // -> foo-bar
 kebabCase('foo bar'); // -> foo-bar
 kebabCase('foo_bar'); // -> foo-bar
 kebabCase('foo.bar'); // -> foo-bar
-```
-
-## keys 
-
+```
+
+## keys 
+
 Create an array of the own enumerable property names of object.
 
 |Name  |Type  |Desc                   |
@@ -1646,10 +1661,10 @@ Create an array of the own enumerable property names of object.
 
 ```javascript
 keys({a: 1}); // -> ['a']
-```
-
-## last 
-
+```
+
+## last 
+
 Get the last element of array.
 
 |Name  |Type |Desc                     |
@@ -1659,10 +1674,10 @@ Get the last element of array.
 
 ```javascript
 last([1, 2]); // -> 2
-```
-
-## loadJs 
-
+```
+
+## loadJs 
+
 Inject script tag into page with given src value.
 
 |Name|Type    |Desc           |
@@ -1675,10 +1690,10 @@ loadJs('main.js', function (isLoaded)
 {
     // Do something...
 });
-```
-
-## lpad 
-
+```
+
+## lpad 
+
 Pad string on the left side if it's shorter than length.
 
 |Name   |Type  |Desc                  |
@@ -1693,10 +1708,10 @@ lpad('a', 5); // -> '    a'
 lpad('a', 5, '-'); // -> '----a'
 lpad('abc', 3, '-'); // -> 'abc'
 lpad('abc', 5, 'ab'); // -> 'ababc'
-```
-
-## ltrim 
-
+```
+
+## ltrim 
+
 Remove chars or white-spaces from beginning of string.
 
 |Name  |Type        |Desc              |
@@ -1709,10 +1724,10 @@ Remove chars or white-spaces from beginning of string.
 ltrim(' abc  '); // -> 'abc  '
 ltrim('_abc_', '_'); // -> 'abc_'
 ltrim('_abc_', ['a', '_']); // -> 'bc_'
-```
-
-## map 
-
+```
+
+## map 
+
 Create an array of values by running each element in collection through iteratee.
 
 |Name    |Type        |Desc                          |
@@ -1724,10 +1739,25 @@ Create an array of values by running each element in collection through iteratee
 
 ```javascript
 map([4, 8], function (n) { return n * n; }); // -> [16, 64]
-```
+```
+
+## mapObj 
+
+Map for objects.
 
-## matcher 
+|Name    |Type    |Desc                          |
+|--------|--------|------------------------------|
+|obj     |object  |Object to iterate over        |
+|iteratee|function|Function invoked per iteration|
+|[ctx]   |*       |Function context              |
+|return  |object  |New mapped object             |
 
+```javascript
+mapObj({a: 1, b: 2}, function (val, key) { return val + 1 }); // -> {a: 2, b: 3}
+```
+
+## matcher 
+
 Return a predicate function that checks if attrs are contained in an object.
 
 |Name  |Type    |Desc                              |
@@ -1741,10 +1771,10 @@ var objects = [
     {a: 4, b: 5, c: 6 }
 ];
 filter(objects, matcher({a: 4, c: 6 })); // -> [{a: 4, b: 5, c: 6 }]
-```
-
-## memStorage 
-
+```
+
+## memStorage 
+
 Memory-backed implementation of the Web Storage API.
 
 A replacement for environments where localStorage or sessionStorage is not available.
@@ -1752,10 +1782,10 @@ A replacement for environments where localStorage or sessionStorage is not avail
 ```javascript
 var localStorage = window.localStorage || memStorage;
 localStorage.setItem('test', 'licia');
-```
-
-## memoize 
-
+```
+
+## memoize 
+
 Memoize a given function by caching the computed result.
 
 |Name    |Type    |Desc                                |
@@ -1769,10 +1799,10 @@ var fibonacci = memoize(function(n)
 {
     return n < 2 ? n : fibonacci(n - 1) + fibonacci(n - 2);
 });
-```
-
-## meta 
-
+```
+
+## meta 
+
 Document meta manipulation, turn name and content into key value pairs.
 
 Get meta content with given name. If name is omitted, all pairs will be return.
@@ -1814,10 +1844,10 @@ meta({
 });
 meta.remove('d');
 meta.remove(['e', 'f']);
-```
-
-## ms 
-
+```
+
+## ms 
+
 Convert time string formats to milliseconds.
 
 Turn time string into milliseconds.
@@ -1843,10 +1873,10 @@ ms('1y'); // -> 31557600000
 ms('1000'); // -> 1000
 ms(1500); // -> '1.5s'
 ms(60000); // -> '1m'
-```
-
-## nextTick 
-
+```
+
+## nextTick 
+
 Next tick for both node and browser.
 
 |Name|Type    |Desc            |
@@ -1862,26 +1892,26 @@ nextTick(function ()
 {
     // Do something...
 });
-```
-
-## noop 
-
+```
+
+## noop 
+
 A no-operation function.
 
 ```javascript
 noop(); // Does nothing
-```
-
-## now 
-
+```
+
+## now 
+
 Gets the number of milliseconds that have elapsed since the Unix epoch.
 
 ```javascript
 now(); // -> 1468826678701
-```
-
-## objToStr 
-
+```
+
+## objToStr 
+
 Alias of Object.prototype.toString.
 
 |Name  |Type  |Desc                                |
@@ -1891,10 +1921,10 @@ Alias of Object.prototype.toString.
 
 ```javascript
 objToStr(5); // -> '[object Number]'
-```
-
-## once 
-
+```
+
+## once 
+
 Create a function that invokes once.
 
 |Name  |Type    |Desc                   |
@@ -1907,14 +1937,14 @@ function init() {};
 var initOnce = once(init);
 initOnce();
 initOnce(); // -> init is invoked once
-```
-
-## optimizeCb 
-
-Used for function context binding.
-
-## orientation 
-
+```
+
+## optimizeCb 
+
+Used for function context binding.
+
+## orientation 
+
 Screen orientation helper.
 
 ### on
@@ -1935,10 +1965,10 @@ orientation.on('change', function (direction)
     console.log(direction); // -> 'portrait'
 });
 orientation.get(); // -> 'landscape'
-```
-
-## partial 
-
+```
+
+## partial 
+
 Partially apply a function by filling in given arguments.
 
 |Name       |Type    |Desc                                    |
@@ -1950,10 +1980,10 @@ Partially apply a function by filling in given arguments.
 ```javascript
 var sub5 = partial(function (a, b) { return b - a }, 5);
 sub(20); // -> 15
-```
-
-## perfNow 
-
+```
+
+## perfNow 
+
 High resolution time up to microsecond precision.
 
 ```javascript
@@ -1962,10 +1992,10 @@ var start = perfNow();
 // Do something.
 
 console.log(perfNow() - start);
-```
-
-## prefix 
-
+```
+
+## prefix 
+
 Add vendor prefixes to a CSS attribute.
 
 |Name  |Type  |Desc                  |
@@ -1981,14 +2011,14 @@ Create a dasherize version.
 prefix('text-emphasis'); // -> 'WebkitTextEmphasis'
 prefix.dash('text-emphasis'); // -> '-webkit-text-emphasis'
 prefix('color'); // -> 'color'
-```
-
-## pxToNum 
-
-Turn string like '0px' to number.
-
-## query 
-
+```
+
+## pxToNum 
+
+Turn string like '0px' to number.
+
+## query 
+
 Parse and stringify url query strings.
 
 ### parse
@@ -2013,10 +2043,10 @@ Stringify an object into a query string.
 query.parse('foo=bar&eruda=true'); // -> {foo: 'bar', eruda: 'true'}
 query.stringify({foo: 'bar', eruda: 'true'}); // -> 'foo=bar&eruda=true'
 query.parse('name=eruda&name=eustia'); // -> {name: ['eruda', 'eustia']}
-```
-
-## repeat 
-
+```
+
+## repeat 
+
 Repeat string n-times.
 
 |Name  |Type  |Desc            |
@@ -2029,10 +2059,10 @@ Repeat string n-times.
 repeat('a', 3); // -> 'aaa'
 repeat('ab', 2); // -> 'abab'
 repeat('*', 0); // -> ''
-```
-
-## restArgs 
-
+```
+
+## restArgs 
+
 This accumulates the arguments passed into an array, after a given index.
 
 |Name      |Type    |Desc                                   |
@@ -2044,10 +2074,10 @@ This accumulates the arguments passed into an array, after a given index.
 ```javascript
 var paramArr = restArgs(function (rest) { return rest });
 paramArr(1, 2, 3, 4); // -> [1, 2, 3, 4]
-```
-
-## rmCookie 
-
+```
+
+## rmCookie 
+
 Loop through all possible path and domain to remove cookie.
 
 |Name|Type  |Desc      |
@@ -2056,14 +2086,14 @@ Loop through all possible path and domain to remove cookie.
 
 ```javascript
 rmCookie('test');
-```
-
-## root 
-
-Root object reference, `global` in nodeJs, `window` in browser.
-
-## rtrim 
-
+```
+
+## root 
+
+Root object reference, `global` in nodeJs, `window` in browser.
+
+## rtrim 
+
 Remove chars or white-spaces from end of string.
 
 |Name  |Type        |Desc              |
@@ -2076,14 +2106,14 @@ Remove chars or white-spaces from end of string.
 rtrim(' abc  '); // -> ' abc'
 rtrim('_abc_', '_'); // -> '_abc'
 rtrim('_abc_', ['c', '_']); // -> '_ab'
-```
-
-## safeCb 
-
-Create callback based on input value.
-
-## safeGet 
-
+```
+
+## safeCb 
+
+Create callback based on input value.
+
+## safeGet 
+
 Get object property, don't throw undefined error.
 
 |Name  |Type        |Desc                     |
@@ -2097,14 +2127,14 @@ var obj = {a: {aa: {aaa: 1}}};
 safeGet(obj, 'a.aa.aaa'); // -> 1
 safeGet(obj, ['a', 'aa']); // -> {aaa: 1}
 safeGet(obj, 'a.b'); // -> undefined
-```
-
-## safeStorage 
-
-Safe localStorage and sessionStorage.
-
-## slice 
-
+```
+
+## safeStorage 
+
+Safe localStorage and sessionStorage.
+
+## slice 
+
 Create slice of source array or array-like object.
 
 |Name              |Type  |Desc                      |
@@ -2115,10 +2145,10 @@ Create slice of source array or array-like object.
 
 ```javascript
 slice([1, 2, 3, 4], 1, 2); // -> [2]
-```
-
-## some 
-
+```
+
+## some 
+
 Check if predicate return truthy for any element.
 
 |Name     |Type        |Desc                                          |
@@ -2133,10 +2163,10 @@ some([2, 5], function (val)
 {
     return val % 2 === 0;
 }); // -> true
-```
-
-## splitCase 
-
+```
+
+## splitCase 
+
 Split different string case to an array.
 
 |Name  |Type  |Desc           |
@@ -2151,10 +2181,10 @@ splitCase('foo_bar'); // -> ['foo', 'bar']
 splitCase('foo.bar'); // -> ['foo', 'bar']
 splitCase('fooBar'); // -> ['foo', 'bar']
 splitCase('foo-Bar'); // -> ['foo', 'bar']
-```
-
-## startWith 
-
+```
+
+## startWith 
+
 Check if string starts with the given target string.
 
 |Name  |Type   |Desc                             |
@@ -2165,10 +2195,10 @@ Check if string starts with the given target string.
 
 ```javascript
 startWith('ab', 'a'); // -> true
-```
-
-## stringify 
-
+```
+
+## stringify 
+
 JSON stringify with support for circular object, function etc.
 
 Undefined is treated as null value.
@@ -2184,10 +2214,10 @@ stringify({a: function () {}}); // -> '{"a":"[Function function () {}]"}'
 var obj = {a: 1};
 obj.b = obj;
 stringify(obj); // -> '{"a":1,"b":"[Circular ~]"}'
-```
-
-## stripHtmlTag 
-
+```
+
+## stripHtmlTag 
+
 Strip html tags from a string.
 
 |Name  |Type  |Desc           |
@@ -2197,10 +2227,10 @@ Strip html tags from a string.
 
 ```javascript
 stripHtmlTag('<p>Hello</p>'); // -> 'Hello'
-```
-
-## toArr 
-
+```
+
+## toArr 
+
 Convert value to an array.
 
 |Name  |Type |Desc            |
@@ -2213,10 +2243,10 @@ toArr({a: 1, b: 2}); // -> [{a: 1, b: 2}]
 toArr('abc'); // -> ['abc']
 toArr(1); // -> [1]
 toArr(null); // -> []
-```
-
-## toInt 
-
+```
+
+## toInt 
+
 Convert value to an integer.
 
 |Name  |Type  |Desc             |
@@ -2227,10 +2257,10 @@ Convert value to an integer.
 ```javascript
 toInt(1.1); // -> 1
 toInt(undefined); // -> 0
-```
-
-## toNum 
-
+```
+
+## toNum 
+
 Convert value to a number.
 
 |Name  |Type  |Desc            |
@@ -2240,10 +2270,10 @@ Convert value to a number.
 
 ```javascript
 toNum('5'); // -> 5
-```
-
-## toSrc 
-
+```
+
+## toSrc 
+
 Convert function to its source code.
 
 |Name  |Type    |Desc               |
@@ -2254,10 +2284,10 @@ Convert function to its source code.
 ```javascript
 toSrc(Math.min); // -> 'function min() { [native code] }'
 toSrc(function () {}) // -> 'function () { }'
-```
-
-## toStr 
-
+```
+
+## toStr 
+
 Convert value to a string.
 
 |Name  |Type  |Desc            |
@@ -2270,10 +2300,10 @@ toStr(null); // -> ''
 toStr(1); // -> '1'
 toStr(false); // -> 'false'
 toStr([1, 2, 3]); // -> '1,2,3'
-```
-
-## trim 
-
+```
+
+## trim 
+
 Remove chars or white-spaces from beginning end of string.
 
 |Name  |Type        |Desc              |
@@ -2286,10 +2316,10 @@ Remove chars or white-spaces from beginning end of string.
 trim(' abc  '); // -> 'abc'
 trim('_abc_', '_'); // -> 'abc'
 trim('_abc_', ['a', 'c', '_']); // -> 'b'
-```
-
-## tryIt 
-
+```
+
+## tryIt 
+
 Run function in a try catch.
 
 |Name|Type    |Desc                 |
@@ -2305,10 +2335,10 @@ tryIt(function ()
 {
     if (err) console.log(err);
 });
-```
-
-## type 
-
+```
+
+## type 
+
 Determine the internal JavaScript [[Class]] of an object.
 
 |Name  |Type  |Desc                      |
@@ -2321,10 +2351,10 @@ type(5); // -> 'number'
 type({}); // -> 'object'
 type(function () {}); // -> 'function'
 type([]); // -> 'array'
-```
-
-## ucs2 
-
+```
+
+## ucs2 
+
 UCS-2 encoding and decoding.
 
 ### encode
@@ -2350,10 +2380,10 @@ ucs2.encode([0x61, 0x62, 0x63]); // -> 'abc'
 ucs2.decode('abc'); // -> [0x61, 0x62, 0x63]
 '𝌆'.length; // -> 2
 ucs2.decode('𝌆').length; // -> 1
-```
-
-## uniqId 
-
+```
+
+## uniqId 
+
 Generate a globally-unique id.
 
 |Name  |Type  |Desc              |
@@ -2363,10 +2393,10 @@ Generate a globally-unique id.
 
 ```javascript
 uniqId('eusita_'); // -> 'eustia_xxx'
-```
-
-## unique 
-
+```
+
+## unique 
+
 Create duplicate-free version of an array.
 
 |Name     |Type    |Desc                         |
@@ -2377,10 +2407,10 @@ Create duplicate-free version of an array.
 
 ```javascript
 unique([1, 2, 3, 1]); // -> [1, 2, 3]
-```
-
-## upperFirst 
-
+```
+
+## upperFirst 
+
 Convert the first character of string to upper case.
 
 |Name  |Type  |Desc             |
@@ -2390,10 +2420,10 @@ Convert the first character of string to upper case.
 
 ```javascript
 upperFirst('red'); // -> Red
-```
-
-## utf8 
-
+```
+
+## utf8 
+
 UTF-8 encoding and decoding.
 
 ### encode
@@ -2418,10 +2448,10 @@ Turn any UTF-8 encoded string into UTF-8 decoded string.
 ```javascript
 utf8.encode('\uD800\uDC00'); // ->  '\xF0\x90\x80\x80'
 utf8.decode('\xF0\x90\x80\x80'); // -> '\uD800\uDC00'
-```
-
-## values 
-
+```
+
+## values 
+
 Create an array of the own enumerable property values of object.
 
 |Name  |Type  |Desc                    |
@@ -2431,18 +2461,18 @@ Create an array of the own enumerable property values of object.
 
 ```javascript
 values({one: 1, two: 2}); // -> [1, 2]
-```
-
-## viewportScale 
-
+```
+
+## viewportScale 
+
 Get viewport scale.
 
 ```javascript
 viewportScale(); // -> 3
-```
-
-## wrap 
-
+```
+
+## wrap 
+
 Wrap the function inside a wrapper function, passing it as the first argument.
 
 |Name   |Type    |Desc            |
@@ -2457,4 +2487,4 @@ var p = wrap(escape, function(fn, text)
     return '<p>' + fn(text) + '</p>';
 });
 p('You & Me'); // -> '<p>You &amp; Me</p>'
-```
+```
diff --git a/src/Info/Info.js b/src/Info/Info.js
index 224b6f2..f3f5238 100644
--- a/src/Info/Info.js
+++ b/src/Info/Info.js
@@ -1,6 +1,6 @@
 import Tool from '../DevTools/Tool'
 import defInfo from './defInfo'
-import { evalCss, each, isFn } from '../lib/util'
+import { evalCss, each, isFn, isUndef, cloneDeep } from '../lib/util'
 
 export default class Info extends Tool {
   constructor() {
@@ -28,8 +28,8 @@ export default class Info extends Tool {
     evalCss.remove(this._style)
   }
   add(name, val) {
-    let infos = this._infos,
-      isUpdate = false
+    let infos = this._infos
+    let isUpdate = false
 
     each(infos, info => {
       if (name !== info.name) return
@@ -44,6 +44,21 @@ export default class Info extends Tool {
 
     return this
   }
+  get(name) {
+    let infos = this._infos
+
+    if (isUndef(name)) {
+      return cloneDeep(infos)
+    }
+
+    let result
+
+    each(infos, info => {
+      if (name === info.name) result = info.val
+    })
+
+    return result
+  }
   remove(name) {
     let infos = this._infos
 
diff --git a/src/lib/util.js b/src/lib/util.js
index fd0c598..d5270e1 100644
--- a/src/lib/util.js
+++ b/src/lib/util.js
@@ -1,11 +1,11 @@
 // Built by eustia.
-"use strict";
+"use strict";
 
-var _ = {};
+var _ = {};
 
-/* ------------------------------ last ------------------------------ */
+/* ------------------------------ last ------------------------------ */
 
-export var last = _.last = (function () {
+export var last = _.last = (function () {
     /* Get the last element of array.
      *
      * |Name  |Type |Desc                     |
@@ -27,14 +27,14 @@ export var last = _.last = (function () {
         var len = arr ? arr.length : 0;
 
         if (len) return arr[len - 1];
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isUndef ------------------------------ */
+/* ------------------------------ isUndef ------------------------------ */
 
-export var isUndef = _.isUndef = (function () {
+export var isUndef = _.isUndef = (function () {
     /* Check if value is undefined.
      *
      * |Name  |Type   |Desc                      |
@@ -55,14 +55,14 @@ export var isUndef = _.isUndef = (function () {
 
     function exports(val) {
         return val === void 0;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isObj ------------------------------ */
+/* ------------------------------ isObj ------------------------------ */
 
-export var isObj = _.isObj = (function () {
+export var isObj = _.isObj = (function () {
     /* Check if value is the language type of Object.
      *
      * |Name  |Type   |Desc                      |
@@ -87,42 +87,14 @@ export var isObj = _.isObj = (function () {
         var type = typeof val;
 
         return !!val && (type === 'function' || type === 'object');
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ startWith ------------------------------ */
+/* ------------------------------ inherits ------------------------------ */
 
-export var startWith = _.startWith = (function () {
-    /* Check if string starts with the given target string.
-     *
-     * |Name  |Type   |Desc                             |
-     * |------|-------|---------------------------------|
-     * |str   |string |String to search                 |
-     * |prefix|string |String prefix                    |
-     * |return|boolean|True if string starts with prefix|
-     *
-     * ```javascript
-     * startWith('ab', 'a'); // -> true
-     * ```
-     */
-
-    /* module
-     * env: all
-     * test: all
-     */
-
-    function exports(str, prefix) {
-        return str.indexOf(prefix) === 0;
-    }
-
-    return exports;
-})();
-
-/* ------------------------------ inherits ------------------------------ */
-
-export var inherits = _.inherits = (function () {
+export var inherits = _.inherits = (function () {
     /* Inherit the prototype methods from one constructor into another.
      *
      * |Name      |Type    |Desc       |
@@ -165,14 +137,14 @@ export var inherits = _.inherits = (function () {
 
     var objCreate = Object.create;
 
-    function noop() {}
+    function noop() {}
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ has ------------------------------ */
+/* ------------------------------ has ------------------------------ */
 
-export var has = _.has = (function () {
+export var has = _.has = (function () {
     /* Checks if key is a direct property.
      *
      * |Name  |Type   |Desc                            |
@@ -195,14 +167,14 @@ export var has = _.has = (function () {
 
     function exports(obj, key) {
         return hasOwnProp.call(obj, key);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ slice ------------------------------ */
+/* ------------------------------ slice ------------------------------ */
 
-export var slice = _.slice = (function () {
+export var slice = _.slice = (function () {
     /* Create slice of source array or array-like object.
      *
      * |Name              |Type  |Desc                      |
@@ -244,14 +216,14 @@ export var slice = _.slice = (function () {
         while (start < end) ret.push(arr[start++]);
 
         return ret;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isBrowser ------------------------------ */
+/* ------------------------------ isBrowser ------------------------------ */
 
-export var isBrowser = _.isBrowser = (function (exports) {
+export var isBrowser = _.isBrowser = (function (exports) {
     /* Check if running in a browser.
      *
      * ```javascript
@@ -267,14 +239,14 @@ export var isBrowser = _.isBrowser = (function (exports) {
     exports =
         typeof window === 'object' &&
         typeof document === 'object' &&
-        document.nodeType === 9;
+        document.nodeType === 9;
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ noop ------------------------------ */
+/* ------------------------------ noop ------------------------------ */
 
-export var noop = _.noop = (function () {
+export var noop = _.noop = (function () {
     /* A no-operation function.
      *
      * ```javascript
@@ -287,14 +259,14 @@ export var noop = _.noop = (function () {
      * test: all
      */
 
-    function exports() {}
+    function exports() {}
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ allKeys ------------------------------ */
+/* ------------------------------ allKeys ------------------------------ */
 
-export var allKeys = _.allKeys = (function () {
+export var allKeys = _.allKeys = (function () {
     /* Retrieve all the names of object's own and inherited properties.
      *
      * |Name  |Type  |Desc                       |
@@ -323,14 +295,14 @@ export var allKeys = _.allKeys = (function () {
         for (key in obj) ret.push(key);
 
         return ret;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ before ------------------------------ */
+/* ------------------------------ before ------------------------------ */
 
-export var before = _.before = (function () {
+export var before = _.before = (function () {
     /* Create a function that invokes less than n times.
      *
      * |Name  |Type    |Desc                                            |
@@ -361,14 +333,14 @@ export var before = _.before = (function () {
 
             return memo;
         };
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ splitCase ------------------------------ */
+/* ------------------------------ splitCase ------------------------------ */
 
-export var splitCase = _.splitCase = (function () {
+export var splitCase = _.splitCase = (function () {
     /* Split different string case to an array.
      *
      * |Name  |Type  |Desc           |
@@ -403,14 +375,14 @@ export var splitCase = _.splitCase = (function () {
             .replace(regTrim, '');
 
         return str.split('-');
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ camelCase ------------------------------ */
+/* ------------------------------ camelCase ------------------------------ */
 
-export var camelCase = _.camelCase = (function () {
+export var camelCase = _.camelCase = (function () {
     /* Convert string to "camelCase".
      *
      * |Name  |Type  |Desc              |
@@ -451,14 +423,14 @@ export var camelCase = _.camelCase = (function () {
         this[idx] = val.replace(/\w/, function(match) {
             return match.toUpperCase();
         });
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ kebabCase ------------------------------ */
+/* ------------------------------ kebabCase ------------------------------ */
 
-export var kebabCase = _.kebabCase = (function () {
+export var kebabCase = _.kebabCase = (function () {
     /* Convert string to "kebabCase".
      *
      * |Name  |Type  |Desc              |
@@ -485,14 +457,14 @@ export var kebabCase = _.kebabCase = (function () {
 
     function exports(str) {
         return splitCase(str).join('-');
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ chunk ------------------------------ */
+/* ------------------------------ chunk ------------------------------ */
 
-export var chunk = _.chunk = (function () {
+export var chunk = _.chunk = (function () {
     /* Split array into groups the length of given size.
      *
      * |Name  |Type  |Desc                |
@@ -525,14 +497,14 @@ export var chunk = _.chunk = (function () {
         }
 
         return ret;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ clamp ------------------------------ */
+/* ------------------------------ clamp ------------------------------ */
 
-export var clamp = _.clamp = (function () {
+export var clamp = _.clamp = (function () {
     /* Clamp number within the inclusive lower and upper bounds.
      *
      * |Name   |Type  |Desc           |
@@ -571,14 +543,14 @@ export var clamp = _.clamp = (function () {
         if (n > upper) return upper;
 
         return n;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ idxOf ------------------------------ */
+/* ------------------------------ idxOf ------------------------------ */
 
-export var idxOf = _.idxOf = (function () {
+export var idxOf = _.idxOf = (function () {
     /* Get the index at which the first occurrence of value.
      *
      * |Name     |Type  |Desc                |
@@ -599,14 +571,14 @@ export var idxOf = _.idxOf = (function () {
 
     function exports(arr, val, fromIdx) {
         return Array.prototype.indexOf.call(arr, val, fromIdx);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ toStr ------------------------------ */
+/* ------------------------------ toStr ------------------------------ */
 
-export var toStr = _.toStr = (function () {
+export var toStr = _.toStr = (function () {
     /* Convert value to a string.
      *
      * |Name  |Type  |Desc            |
@@ -629,14 +601,14 @@ export var toStr = _.toStr = (function () {
 
     function exports(val) {
         return val == null ? '' : val.toString();
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ ucs2 ------------------------------ */
+/* ------------------------------ ucs2 ------------------------------ */
 
-export var ucs2 = _.ucs2 = (function (exports) {
+export var ucs2 = _.ucs2 = (function (exports) {
     /* UCS-2 encoding and decoding.
      *
      * ### encode
@@ -702,14 +674,14 @@ export var ucs2 = _.ucs2 = (function (exports) {
 
             return ret;
         }
-    };
+    };
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ utf8 ------------------------------ */
+/* ------------------------------ utf8 ------------------------------ */
 
-export var utf8 = _.utf8 = (function (exports) {
+export var utf8 = _.utf8 = (function (exports) {
     /* UTF-8 encoding and decoding.
      *
      * ### encode
@@ -906,14 +878,14 @@ export var utf8 = _.utf8 = (function (exports) {
         upperBoundary = 0xbf;
 
         return byteArr[start];
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ root ------------------------------ */
+/* ------------------------------ root ------------------------------ */
 
-export var root = _.root = (function (exports) {
+export var root = _.root = (function (exports) {
     /* Root object reference, `global` in nodeJs, `window` in browser. */
 
     /* module
@@ -925,14 +897,14 @@ export var root = _.root = (function (exports) {
      * isBrowser 
      */
 
-    exports = isBrowser ? window : global;
+    exports = isBrowser ? window : global;
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ detectMocha ------------------------------ */
+/* ------------------------------ detectMocha ------------------------------ */
 
-export var detectMocha = _.detectMocha = (function () {
+export var detectMocha = _.detectMocha = (function () {
     /* Detect if mocha is running.
      *
      * ```javascript
@@ -959,14 +931,14 @@ export var detectMocha = _.detectMocha = (function () {
         return true;
     }
 
-    var methods = ['afterEach', 'after', 'beforeEach', 'before', 'describe', 'it'];
+    var methods = ['afterEach', 'after', 'beforeEach', 'before', 'describe', 'it'];
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ keys ------------------------------ */
+/* ------------------------------ keys ------------------------------ */
 
-export var keys = _.keys = (function (exports) {
+export var keys = _.keys = (function (exports) {
     /* Create an array of the own enumerable property names of object.
      *
      * |Name  |Type  |Desc                   |
@@ -1001,14 +973,14 @@ export var keys = _.keys = (function (exports) {
 
             return ret;
         };
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ freeze ------------------------------ */
+/* ------------------------------ freeze ------------------------------ */
 
-export var freeze = _.freeze = (function () {
+export var freeze = _.freeze = (function () {
     /* Shortcut for Object.freeze.
      *
      * Use Object.defineProperties if Object.freeze is not supported.
@@ -1048,14 +1020,14 @@ export var freeze = _.freeze = (function () {
         });
 
         return obj;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ detectOs ------------------------------ */
+/* ------------------------------ detectOs ------------------------------ */
 
-export var detectOs = _.detectOs = (function () {
+export var detectOs = _.detectOs = (function () {
     /* Detect operating system using ua.
      * 
      * |Name                    |Type  |Desc                 |
@@ -1099,14 +1071,14 @@ export var detectOs = _.detectOs = (function () {
         }
 
         return 'unknown';
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ optimizeCb ------------------------------ */
+/* ------------------------------ optimizeCb ------------------------------ */
 
-export var optimizeCb = _.optimizeCb = (function () {
+export var optimizeCb = _.optimizeCb = (function () {
     /* Used for function context binding.
      */
 
@@ -1140,14 +1112,14 @@ export var optimizeCb = _.optimizeCb = (function () {
         return function() {
             return fn.apply(ctx, arguments);
         };
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ endWith ------------------------------ */
+/* ------------------------------ endWith ------------------------------ */
 
-export var endWith = _.endWith = (function () {
+export var endWith = _.endWith = (function () {
     /* Check if string ends with the given target string.
      *
      * |Name  |Type   |Desc                           |
@@ -1170,14 +1142,14 @@ export var endWith = _.endWith = (function () {
         var idx = str.length - suffix.length;
 
         return idx >= 0 && str.indexOf(suffix, idx) === idx;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ escape ------------------------------ */
+/* ------------------------------ escape ------------------------------ */
 
-export var escape = _.escape = (function () {
+export var escape = _.escape = (function () {
     /* Escapes a string for insertion into HTML, replacing &, <, >, ", `, and ' characters.
      *
      * |Name  |Type  |Desc            |
@@ -1218,14 +1190,14 @@ export var escape = _.escape = (function () {
 
     function replaceFn(match) {
         return map[match];
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ escapeJsStr ------------------------------ */
+/* ------------------------------ escapeJsStr ------------------------------ */
 
-export var escapeJsStr = _.escapeJsStr = (function () {
+export var escapeJsStr = _.escapeJsStr = (function () {
     /* Escape string to be a valid JavaScript string literal between quotes.
      *
      * http://www.ecma-international.org/ecma-262/5.1/#sec-7.8.4
@@ -1270,14 +1242,14 @@ export var escapeJsStr = _.escapeJsStr = (function () {
         });
     }
 
-    var regEscapeChars = /["'\\\n\r\u2028\u2029]/g;
+    var regEscapeChars = /["'\\\n\r\u2028\u2029]/g;
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ escapeJsonStr ------------------------------ */
+/* ------------------------------ escapeJsonStr ------------------------------ */
 
-export var escapeJsonStr = _.escapeJsonStr = (function () {
+export var escapeJsonStr = _.escapeJsonStr = (function () {
     /* Escape json string.
      */
 
@@ -1286,15 +1258,15 @@ export var escapeJsonStr = _.escapeJsonStr = (function () {
      */
 
     function exports(str) {
-        return escapeJsStr(str).replace(/\\'/g, "'");
-    }
+      return escapeJsStr(str).replace(/\\'/g, "'")
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ escapeRegExp ------------------------------ */
+/* ------------------------------ escapeRegExp ------------------------------ */
 
-export var escapeRegExp = _.escapeRegExp = (function () {
+export var escapeRegExp = _.escapeRegExp = (function () {
     /* Escape special chars to be used as literals in RegExp constructors.
      *
      * |Name  |Type  |Desc            |
@@ -1314,14 +1286,14 @@ export var escapeRegExp = _.escapeRegExp = (function () {
 
     function exports(str) {
         return str.replace(/\W/g, '\\$&');
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ fileSize ------------------------------ */
+/* ------------------------------ fileSize ------------------------------ */
 
-export var fileSize = _.fileSize = (function () {
+export var fileSize = _.fileSize = (function () {
     /* Turn bytes into human readable file size.
      * 
      * |Name  |Type  |Desc              |
@@ -1352,14 +1324,42 @@ export var fileSize = _.fileSize = (function () {
         return +val.toFixed(2) + suffixList[suffixIdx];
     }
 
-    var suffixList = ['', 'K', 'M', 'G', 'T'];
+    var suffixList = ['', 'K', 'M', 'G', 'T'];
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ fullUrl ------------------------------ */
+/* ------------------------------ startWith ------------------------------ */
 
-export var fullUrl = _.fullUrl = (function () {
+export var startWith = _.startWith = (function () {
+    /* Check if string starts with the given target string.
+     *
+     * |Name  |Type   |Desc                             |
+     * |------|-------|---------------------------------|
+     * |str   |string |String to search                 |
+     * |prefix|string |String prefix                    |
+     * |return|boolean|True if string starts with prefix|
+     *
+     * ```javascript
+     * startWith('ab', 'a'); // -> true
+     * ```
+     */
+
+    /* module
+     * env: all
+     * test: all
+     */
+
+    function exports(str, prefix) {
+        return str.indexOf(prefix) === 0;
+    }
+
+    return exports;
+})();
+
+/* ------------------------------ fullUrl ------------------------------ */
+
+export var fullUrl = _.fullUrl = (function () {
     /* Add origin to url if needed.
      */
 
@@ -1367,22 +1367,22 @@ export var fullUrl = _.fullUrl = (function () {
      * startWith 
      */
 
-    let origin = window.location.origin;
+    let origin = window.location.origin
 
     function exports(url) {
-        if (startWith(url, 'http')) return url;
+      if (startWith(url, 'http')) return url
 
-        if (!startWith(url, '/')) url = '/' + url;
+      if (!startWith(url, '/')) url = '/' + url
 
-        return origin + url;
-    }
+      return origin + url
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ upperFirst ------------------------------ */
+/* ------------------------------ upperFirst ------------------------------ */
 
-export var upperFirst = _.upperFirst = (function () {
+export var upperFirst = _.upperFirst = (function () {
     /* Convert the first character of string to upper case.
      *
      * |Name  |Type  |Desc             |
@@ -1404,14 +1404,14 @@ export var upperFirst = _.upperFirst = (function () {
         if (str.length < 1) return str;
 
         return str[0].toUpperCase() + str.slice(1);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ getObjType ------------------------------ */
+/* ------------------------------ getObjType ------------------------------ */
 
-export var getObjType = _.getObjType = (function () {
+export var getObjType = _.getObjType = (function () {
     /* Get object type.
      */
 
@@ -1420,17 +1420,17 @@ export var getObjType = _.getObjType = (function () {
      */
 
     function exports(obj) {
-        if (obj.constructor && obj.constructor.name) return obj.constructor.name;
+      if (obj.constructor && obj.constructor.name) return obj.constructor.name
 
-        return upperFirst({}.toString.call(obj).replace(/(\[object )|]/g, ''));
-    }
+      return upperFirst({}.toString.call(obj).replace(/(\[object )|]/g, ''))
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ identity ------------------------------ */
+/* ------------------------------ identity ------------------------------ */
 
-export var identity = _.identity = (function () {
+export var identity = _.identity = (function () {
     /* Return the first argument given.
      *
      * |Name  |Type|Desc       |
@@ -1450,14 +1450,14 @@ export var identity = _.identity = (function () {
 
     function exports(val) {
         return val;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ objToStr ------------------------------ */
+/* ------------------------------ objToStr ------------------------------ */
 
-export var objToStr = _.objToStr = (function () {
+export var objToStr = _.objToStr = (function () {
     /* Alias of Object.prototype.toString.
      *
      * |Name  |Type  |Desc                                |
@@ -1479,14 +1479,14 @@ export var objToStr = _.objToStr = (function () {
 
     function exports(val) {
         return ObjToStr.call(val);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isArgs ------------------------------ */
+/* ------------------------------ isArgs ------------------------------ */
 
-export var isArgs = _.isArgs = (function () {
+export var isArgs = _.isArgs = (function () {
     /* Check if value is classified as an arguments object.
      *
      * |Name  |Type   |Desc                                |
@@ -1512,14 +1512,14 @@ export var isArgs = _.isArgs = (function () {
 
     function exports(val) {
         return objToStr(val) === '[object Arguments]';
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isArr ------------------------------ */
+/* ------------------------------ isArr ------------------------------ */
 
-export var isArr = _.isArr = (function (exports) {
+export var isArr = _.isArr = (function (exports) {
     /* Check if value is an `Array` object.
      *
      * |Name  |Type   |Desc                              |
@@ -1546,14 +1546,14 @@ export var isArr = _.isArr = (function (exports) {
         Array.isArray ||
         function(val) {
             return objToStr(val) === '[object Array]';
-        };
+        };
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ castPath ------------------------------ */
+/* ------------------------------ castPath ------------------------------ */
 
-export var castPath = _.castPath = (function () {
+export var castPath = _.castPath = (function () {
     /* Cast value into a property path array.
      *
      * |Name  |Type  |Desc               |
@@ -1594,14 +1594,14 @@ export var castPath = _.castPath = (function () {
 
     // Lodash _stringToPath
     var regPropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g,
-        regEscapeChar = /\\(\\)?/g;
+        regEscapeChar = /\\(\\)?/g;
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ safeGet ------------------------------ */
+/* ------------------------------ safeGet ------------------------------ */
 
-export var safeGet = _.safeGet = (function () {
+export var safeGet = _.safeGet = (function () {
     /* Get object property, don't throw undefined error.
      *
      * |Name  |Type        |Desc                     |
@@ -1640,14 +1640,14 @@ export var safeGet = _.safeGet = (function () {
         }
 
         return obj;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isDate ------------------------------ */
+/* ------------------------------ isDate ------------------------------ */
 
-export var isDate = _.isDate = (function () {
+export var isDate = _.isDate = (function () {
     /* Check if value is classified as a Date object.
      *
      * |Name  |Type   |Desc                          |
@@ -1671,14 +1671,14 @@ export var isDate = _.isDate = (function () {
 
     function exports(val) {
         return objToStr(val) === '[object Date]';
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isFn ------------------------------ */
+/* ------------------------------ isFn ------------------------------ */
 
-export var isFn = _.isFn = (function () {
+export var isFn = _.isFn = (function () {
     /* Check if value is a function.
      *
      * |Name  |Type   |Desc                       |
@@ -1710,14 +1710,14 @@ export var isFn = _.isFn = (function () {
             objStr === '[object Function]' ||
             objStr === '[object GeneratorFunction]'
         );
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isMiniProgram ------------------------------ */
+/* ------------------------------ isMiniProgram ------------------------------ */
 
-export var isMiniProgram = _.isMiniProgram = (function (exports) {
+export var isMiniProgram = _.isMiniProgram = (function (exports) {
     /* Check if running in wechat mini program.
      *
      * ```javascript
@@ -1735,14 +1735,14 @@ export var isMiniProgram = _.isMiniProgram = (function (exports) {
      */
 
     /* eslint-disable no-undef */
-    exports = typeof wx !== 'undefined' && isFn(wx.openLocation);
+    exports = typeof wx !== 'undefined' && isFn(wx.openLocation);
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ isNum ------------------------------ */
+/* ------------------------------ isNum ------------------------------ */
 
-export var isNum = _.isNum = (function () {
+export var isNum = _.isNum = (function () {
     /* Check if value is classified as a Number primitive or object.
      *
      * |Name  |Type   |Desc                                 |
@@ -1768,14 +1768,14 @@ export var isNum = _.isNum = (function () {
 
     function exports(val) {
         return objToStr(val) === '[object Number]';
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isArrLike ------------------------------ */
+/* ------------------------------ isArrLike ------------------------------ */
 
-export var isArrLike = _.isArrLike = (function () {
+export var isArrLike = _.isArrLike = (function () {
     /* Check if value is array-like.
      *
      * |Name  |Type   |Desc                       |
@@ -1809,14 +1809,14 @@ export var isArrLike = _.isArrLike = (function () {
         var len = val.length;
 
         return isNum(len) && len >= 0 && len <= MAX_ARR_IDX && !isFn(val);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ each ------------------------------ */
+/* ------------------------------ each ------------------------------ */
 
-export var each = _.each = (function () {
+export var each = _.each = (function () {
     /* Iterate over elements of collection and invokes iteratee for each element.
      *
      * |Name    |Type        |Desc                          |
@@ -1854,14 +1854,14 @@ export var each = _.each = (function () {
         }
 
         return obj;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ createAssigner ------------------------------ */
+/* ------------------------------ createAssigner ------------------------------ */
 
-export var createAssigner = _.createAssigner = (function () {
+export var createAssigner = _.createAssigner = (function () {
     /* Used to create extend, extendOwn and defaults.
      *
      * |Name    |Type    |Desc                          |
@@ -1894,14 +1894,14 @@ export var createAssigner = _.createAssigner = (function () {
 
             return obj;
         };
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ defaults ------------------------------ */
+/* ------------------------------ defaults ------------------------------ */
 
-export var defaults = _.defaults = (function (exports) {
+export var defaults = _.defaults = (function (exports) {
     /* Fill in undefined properties in object with the first value present in the following list of defaults objects.
      *
      * |Name  |Type  |Desc              |
@@ -1924,14 +1924,14 @@ export var defaults = _.defaults = (function (exports) {
      * createAssigner allKeys 
      */
 
-    exports = createAssigner(allKeys, true);
+    exports = createAssigner(allKeys, true);
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ extend ------------------------------ */
+/* ------------------------------ extend ------------------------------ */
 
-export var extend = _.extend = (function (exports) {
+export var extend = _.extend = (function (exports) {
     /* Copy all of the properties in the source objects over to the destination object.
      *
      * |Name  |Type  |Desc              |
@@ -1954,14 +1954,14 @@ export var extend = _.extend = (function (exports) {
      * createAssigner allKeys 
      */
 
-    exports = createAssigner(allKeys);
+    exports = createAssigner(allKeys);
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ clone ------------------------------ */
+/* ------------------------------ clone ------------------------------ */
 
-export var clone = _.clone = (function () {
+export var clone = _.clone = (function () {
     /* Create a shallow-copied clone of the provided plain object.
      *
      * Any nested objects or arrays will be copied by reference, not duplicated.
@@ -1989,14 +1989,14 @@ export var clone = _.clone = (function () {
         if (!isObj(obj)) return obj;
 
         return isArr(obj) ? obj.slice() : extend({}, obj);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ extendOwn ------------------------------ */
+/* ------------------------------ extendOwn ------------------------------ */
 
-export var extendOwn = _.extendOwn = (function (exports) {
+export var extendOwn = _.extendOwn = (function (exports) {
     /* Like extend, but only copies own properties over to the destination object.
      *
      * |Name  |Type  |Desc              |
@@ -2019,14 +2019,14 @@ export var extendOwn = _.extendOwn = (function (exports) {
      * keys createAssigner 
      */
 
-    exports = createAssigner(keys);
+    exports = createAssigner(keys);
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ values ------------------------------ */
+/* ------------------------------ values ------------------------------ */
 
-export var values = _.values = (function () {
+export var values = _.values = (function () {
     /* Create an array of the own enumerable property values of object.
      *
      * |Name  |Type  |Desc                    |
@@ -2056,14 +2056,14 @@ export var values = _.values = (function () {
         });
 
         return ret;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ contain ------------------------------ */
+/* ------------------------------ contain ------------------------------ */
 
-export var contain = _.contain = (function () {
+export var contain = _.contain = (function () {
     /* Check if the value is present in the list.
      *
      * |Name  |Type        |Desc                                |
@@ -2091,14 +2091,14 @@ export var contain = _.contain = (function () {
         if (!isArrLike(arr)) arr = values(arr);
 
         return idxOf(arr, val) >= 0;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isStr ------------------------------ */
+/* ------------------------------ isStr ------------------------------ */
 
-export var isStr = _.isStr = (function () {
+export var isStr = _.isStr = (function () {
     /* Check if value is a string primitive.
      *
      * |Name  |Type   |Desc                               |
@@ -2122,14 +2122,14 @@ export var isStr = _.isStr = (function () {
 
     function exports(val) {
         return objToStr(val) === '[object String]';
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isEmpty ------------------------------ */
+/* ------------------------------ isEmpty ------------------------------ */
 
-export var isEmpty = _.isEmpty = (function () {
+export var isEmpty = _.isEmpty = (function () {
     /* Check if value is an empty object or array.
      *
      * |Name  |Type   |Desc                  |
@@ -2161,14 +2161,14 @@ export var isEmpty = _.isEmpty = (function () {
         }
 
         return keys(val).length === 0;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isBool ------------------------------ */
+/* ------------------------------ isBool ------------------------------ */
 
-export var isBool = _.isBool = (function () {
+export var isBool = _.isBool = (function () {
     /* Check if value is a boolean primitive.
      *
      * |Name  |Type   |Desc                      |
@@ -2190,14 +2190,14 @@ export var isBool = _.isBool = (function () {
 
     function exports(val) {
         return val === true || val === false;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isCrossOrig ------------------------------ */
+/* ------------------------------ isCrossOrig ------------------------------ */
 
-export var isCrossOrig = _.isCrossOrig = (function () {
+export var isCrossOrig = _.isCrossOrig = (function () {
     /* Check if a url is cross origin.
      */
 
@@ -2205,18 +2205,18 @@ export var isCrossOrig = _.isCrossOrig = (function () {
      * startWith 
      */
 
-    var origin = window.location.origin;
+    var origin = window.location.origin
 
     function exports(url) {
-        return !startWith(url, origin);
-    }
+      return !startWith(url, origin)
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isEl ------------------------------ */
+/* ------------------------------ isEl ------------------------------ */
 
-export var isEl = _.isEl = (function () {
+export var isEl = _.isEl = (function () {
     /* Check if value is a DOM element.
      *
      * |Name  |Type   |Desc                          |
@@ -2236,14 +2236,14 @@ export var isEl = _.isEl = (function () {
 
     function exports(val) {
         return !!(val && val.nodeType === 1);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isErr ------------------------------ */
+/* ------------------------------ isErr ------------------------------ */
 
-export var isErr = _.isErr = (function () {
+export var isErr = _.isErr = (function () {
     /* Check if value is an error.
      *
      * |Name  |Type   |Desc                     |
@@ -2267,36 +2267,36 @@ export var isErr = _.isErr = (function () {
 
     function exports(val) {
         return objToStr(val) === '[object Error]';
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isErudaEl ------------------------------ */
+/* ------------------------------ isErudaEl ------------------------------ */
 
-export var isErudaEl = _.isErudaEl = (function () {
+export var isErudaEl = _.isErudaEl = (function () {
     /* See if an element is within eruda.
      */
 
     function exports(el) {
-        var parentNode = el.parentNode;
+      var parentNode = el.parentNode
 
-        if (!parentNode) return false;
+      if (!parentNode) return false
 
-        while (parentNode) {
-            parentNode = parentNode.parentNode;
-            if (parentNode && parentNode.id === 'eruda') return true;
-        }
+      while (parentNode) {
+        parentNode = parentNode.parentNode
+        if (parentNode && parentNode.id === 'eruda') return true
+      }
 
-        return false;
-    }
+      return false
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isMatch ------------------------------ */
+/* ------------------------------ isMatch ------------------------------ */
 
-export var isMatch = _.isMatch = (function () {
+export var isMatch = _.isMatch = (function () {
     /* Check if keys and values in src are contained in obj.
      *
      * |Name  |Type   |Desc                              |
@@ -2333,14 +2333,14 @@ export var isMatch = _.isMatch = (function () {
         }
 
         return true;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ memoize ------------------------------ */
+/* ------------------------------ memoize ------------------------------ */
 
-export var memoize = _.memoize = (function () {
+export var memoize = _.memoize = (function () {
     /* Memoize a given function by caching the computed result.
      *
      * |Name    |Type    |Desc                                |
@@ -2379,14 +2379,14 @@ export var memoize = _.memoize = (function () {
         memoize.cache = {};
 
         return memoize;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isMobile ------------------------------ */
+/* ------------------------------ isMobile ------------------------------ */
 
-export var isMobile = _.isMobile = (function (exports) {
+export var isMobile = _.isMobile = (function (exports) {
     /* Check whether client is using a mobile browser using ua.
      *
      * |Name                    |Type   |Desc                                 |
@@ -2415,14 +2415,14 @@ export var isMobile = _.isMobile = (function (exports) {
         ua = ua || (isBrowser ? navigator.userAgent : '');
 
         return regMobileAll.test(ua) || regMobileFour.test(ua.substr(0, 4));
-    });
+    });
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ prefix ------------------------------ */
+/* ------------------------------ prefix ------------------------------ */
 
-export var prefix = _.prefix = (function (exports) {
+export var prefix = _.prefix = (function (exports) {
     /* Add vendor prefixes to a CSS attribute.
      *
      * |Name  |Type  |Desc                  |
@@ -2476,14 +2476,14 @@ export var prefix = _.prefix = (function (exports) {
 
     var prefixes = ['O', 'ms', 'Moz', 'Webkit'],
         regPrefixes = /^(O)|(ms)|(Moz)|(Webkit)|(-o-)|(-ms-)|(-moz-)|(-webkit-)/g,
-        style = document.createElement('p').style;
+        style = document.createElement('p').style;
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ isNaN ------------------------------ */
+/* ------------------------------ isNaN ------------------------------ */
 
-export var isNaN = _.isNaN = (function () {
+export var isNaN = _.isNaN = (function () {
     /* Check if value is an NaN.
      *
      * |Name  |Type   |Desc                   |
@@ -2510,14 +2510,14 @@ export var isNaN = _.isNaN = (function () {
 
     function exports(val) {
         return isNum(val) && val !== +val;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isNil ------------------------------ */
+/* ------------------------------ isNil ------------------------------ */
 
-export var isNil = _.isNil = (function () {
+export var isNil = _.isNil = (function () {
     /* Check if value is null or undefined, the same as value == null.
      * 
      * |Name  |Type   |Desc                              |
@@ -2542,14 +2542,14 @@ export var isNil = _.isNil = (function () {
 
     function exports(val) {
         return val == null;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ toSrc ------------------------------ */
+/* ------------------------------ toSrc ------------------------------ */
 
-export var toSrc = _.toSrc = (function () {
+export var toSrc = _.toSrc = (function () {
     /* Convert function to its source code.
      * 
      * |Name  |Type    |Desc               |
@@ -2588,14 +2588,14 @@ export var toSrc = _.toSrc = (function () {
         return '';
     }
 
-    var fnToStr = Function.prototype.toString;
+    var fnToStr = Function.prototype.toString;
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isNative ------------------------------ */
+/* ------------------------------ isNative ------------------------------ */
 
-export var isNative = _.isNative = (function () {
+export var isNative = _.isNative = (function () {
     /* Check if value is a native function.
      * 
      * |Name  |Type   |Desc                              |
@@ -2615,7 +2615,7 @@ export var isNative = _.isNative = (function () {
      */
 
     /* dependencies
-     * isObj isFn has toSrc 
+     * isObj isFn toSrc 
      */
 
     function exports(val) {
@@ -2640,14 +2640,14 @@ export var isNative = _.isNative = (function () {
             '$'
     );
 
-    var regIsHostCtor = /^\[object .+?Constructor\]$/;
+    var regIsHostCtor = /^\[object .+?Constructor\]$/;
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isNull ------------------------------ */
+/* ------------------------------ isNull ------------------------------ */
 
-export var isNull = _.isNull = (function () {
+export var isNull = _.isNull = (function () {
     /* Check if value is an Null.
      *
      * |Name  |Type   |Desc                    |
@@ -2667,14 +2667,14 @@ export var isNull = _.isNull = (function () {
 
     function exports(val) {
         return val === null;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ isRegExp ------------------------------ */
+/* ------------------------------ isRegExp ------------------------------ */
 
-export var isRegExp = _.isRegExp = (function () {
+export var isRegExp = _.isRegExp = (function () {
     /* Check if value is a regular expression.
      *
      * |Name  |Type   |Desc                                 |
@@ -2698,14 +2698,14 @@ export var isRegExp = _.isRegExp = (function () {
 
     function exports(val) {
         return objToStr(val) === '[object RegExp]';
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ loadJs ------------------------------ */
+/* ------------------------------ loadJs ------------------------------ */
 
-export var loadJs = _.loadJs = (function () {
+export var loadJs = _.loadJs = (function () {
     /* Inject script tag into page with given src value.
      *
      * |Name|Type    |Desc           |
@@ -2738,14 +2738,14 @@ export var loadJs = _.loadJs = (function () {
             cb && cb(!isNotLoaded);
         };
         document.body.appendChild(script);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ repeat ------------------------------ */
+/* ------------------------------ repeat ------------------------------ */
 
-export var repeat = _.repeat = (function (exports) {
+export var repeat = _.repeat = (function (exports) {
     /* Repeat string n-times.
      *
      * |Name  |Type  |Desc            |
@@ -2778,14 +2778,14 @@ export var repeat = _.repeat = (function (exports) {
         }
 
         return ret;
-    };
+    };
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ lpad ------------------------------ */
+/* ------------------------------ lpad ------------------------------ */
 
-export var lpad = _.lpad = (function () {
+export var lpad = _.lpad = (function () {
     /* Pad string on the left side if it's shorter than length.
      *
      * |Name   |Type  |Desc                  |
@@ -2822,14 +2822,14 @@ export var lpad = _.lpad = (function () {
         if (strLen < len) str = (repeat(chars, len - strLen) + str).slice(-len);
 
         return str;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ dateFormat ------------------------------ */
+/* ------------------------------ dateFormat ------------------------------ */
 
-export var dateFormat = _.dateFormat = (function () {
+export var dateFormat = _.dateFormat = (function () {
     /* Simple but extremely useful date format function.
      *
      * |Name           |Type   |Desc                 |
@@ -3033,14 +3033,14 @@ export var dateFormat = _.dateFormat = (function () {
             'November',
             'December'
         ]
-    };
+    };
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ ltrim ------------------------------ */
+/* ------------------------------ ltrim ------------------------------ */
 
-export var ltrim = _.ltrim = (function () {
+export var ltrim = _.ltrim = (function () {
     /* Remove chars or white-spaces from beginning of string.
      *
      * |Name  |Type        |Desc              |
@@ -3088,14 +3088,14 @@ export var ltrim = _.ltrim = (function () {
         }
 
         return start >= len ? '' : str.substr(start, len);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ matcher ------------------------------ */
+/* ------------------------------ matcher ------------------------------ */
 
-export var matcher = _.matcher = (function () {
+export var matcher = _.matcher = (function () {
     /* Return a predicate function that checks if attrs are contained in an object.
      *
      * |Name  |Type    |Desc                              |
@@ -3127,14 +3127,14 @@ export var matcher = _.matcher = (function () {
         return function(obj) {
             return isMatch(obj, attrs);
         };
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ safeCb ------------------------------ */
+/* ------------------------------ safeCb ------------------------------ */
 
-export var safeCb = _.safeCb = (function (exports) {
+export var safeCb = _.safeCb = (function (exports) {
     /* Create callback based on input value.
      */
 
@@ -3159,14 +3159,14 @@ export var safeCb = _.safeCb = (function (exports) {
                 return obj == null ? undefined : obj[key];
             };
         };
-    };
+    };
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ filter ------------------------------ */
+/* ------------------------------ filter ------------------------------ */
 
-export var filter = _.filter = (function () {
+export var filter = _.filter = (function () {
     /* Iterates over elements of collection, returning an array of all the values that pass a truth test.
      *
      * |Name     |Type    |Desc                                   |
@@ -3203,14 +3203,14 @@ export var filter = _.filter = (function () {
         });
 
         return ret;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ evalCss ------------------------------ */
+/* ------------------------------ evalCss ------------------------------ */
 
-export var evalCss = _.evalCss = (function () {
+export var evalCss = _.evalCss = (function () {
     /* Eval css.
      */
 
@@ -3219,54 +3219,54 @@ export var evalCss = _.evalCss = (function () {
      */
 
     var styleList = [],
-        scale = 1;
+      scale = 1
 
     function exports(css, container) {
-        css = toStr(css);
+      css = toStr(css)
 
-        for (var i = 0, len = styleList.length; i < len; i++) {
-            if (styleList[i].css === css) return;
-        }
+      for (var i = 0, len = styleList.length; i < len; i++) {
+        if (styleList[i].css === css) return
+      }
 
-        container = container || exports.container || document.head;
-        const el = document.createElement('style');
+      container = container || exports.container || document.head
+      const el = document.createElement('style')
 
-        el.type = 'text/css';
-        container.appendChild(el);
+      el.type = 'text/css'
+      container.appendChild(el)
 
-        let style = { css, el, container };
-        resetStyle(style);
-        styleList.push(style);
+      let style = { css, el, container }
+      resetStyle(style)
+      styleList.push(style)
 
-        return style;
+      return style
     }
 
     exports.setScale = function(s) {
-        scale = s;
-        each(styleList, style => resetStyle(style));
-    };
-
-    exports.clear = function() {
-        each(styleList, ({ container, el }) => container.removeChild(el));
-        styleList = [];
-    };
-
-    exports.remove = function(style) {
-        styleList = filter(styleList, s => s !== style);
-
-        style.container.removeChild(style.el);
-    };
-
-    function resetStyle({ css, el }) {
-        el.innerText = css.replace(/(\d+)px/g, ($0, $1) => +$1 * scale + 'px');
+      scale = s
+      each(styleList, style => resetStyle(style))
     }
 
-    return exports;
-})();
+    exports.clear = function() {
+      each(styleList, ({ container, el }) => container.removeChild(el))
+      styleList = []
+    }
 
-/* ------------------------------ map ------------------------------ */
+    exports.remove = function(style) {
+      styleList = filter(styleList, s => s !== style)
 
-export var map = _.map = (function () {
+      style.container.removeChild(style.el)
+    }
+
+    function resetStyle({ css, el }) {
+      el.innerText = css.replace(/(\d+)px/g, ($0, $1) => +$1 * scale + 'px')
+    }
+
+    return exports;
+})();
+
+/* ------------------------------ map ------------------------------ */
+
+export var map = _.map = (function () {
     /* Create an array of values by running each element in collection through iteratee.
      *
      * |Name    |Type        |Desc                          |
@@ -3303,14 +3303,14 @@ export var map = _.map = (function () {
         }
 
         return results;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ decodeUriComponent ------------------------------ */
+/* ------------------------------ decodeUriComponent ------------------------------ */
 
-export var decodeUriComponent = _.decodeUriComponent = (function () {
+export var decodeUriComponent = _.decodeUriComponent = (function () {
     /* Better decodeURIComponent that does not throw if input is invalid.
      *
      * |Name  |Type  |Desc            |
@@ -3337,8 +3337,6 @@ export var decodeUriComponent = _.decodeUriComponent = (function () {
         try {
             return decodeURIComponent(str);
         } catch (e) {
-            var replaceMap = {};
-
             var matches = str.match(regMatcher);
 
             each(matches, function(match) {
@@ -3364,14 +3362,14 @@ export var decodeUriComponent = _.decodeUriComponent = (function () {
         return +('0x' + numStr);
     }
 
-    var regMatcher = /(%[a-f0-9]{2})+/gi;
+    var regMatcher = /(%[a-f0-9]{2})+/gi;
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ cookie ------------------------------ */
+/* ------------------------------ cookie ------------------------------ */
 
-export var cookie = _.cookie = (function (exports) {
+export var cookie = _.cookie = (function (exports) {
     /* Simple api for handling browser cookies.
      *
      * ### get
@@ -3482,14 +3480,14 @@ export var cookie = _.cookie = (function (exports) {
 
             return setCookie(key, '', options);
         }
-    };
+    };
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ toArr ------------------------------ */
+/* ------------------------------ toArr ------------------------------ */
 
-export var toArr = _.toArr = (function () {
+export var toArr = _.toArr = (function () {
     /* Convert value to an array.
      *
      * |Name  |Type |Desc            |
@@ -3522,14 +3520,14 @@ export var toArr = _.toArr = (function () {
         if (isArrLike(val) && !isStr(val)) return map(val);
 
         return [val];
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ Class ------------------------------ */
+/* ------------------------------ Class ------------------------------ */
 
-export var Class = _.Class = (function () {
+export var Class = _.Class = (function () {
     /* Create JavaScript class.
      *
      * |Name     |Type    |Desc                             |
@@ -3581,7 +3579,7 @@ export var Class = _.Class = (function () {
      */
 
     /* dependencies
-     * extend toArr inherits has safeGet isMiniProgram 
+     * extend toArr inherits safeGet isMiniProgram 
      */
 
     function exports(methods, statics) {
@@ -3648,14 +3646,14 @@ export var Class = _.Class = (function () {
         toString: function() {
             return this.constructor.name;
         }
-    }));
+    }));
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ Enum ------------------------------ */
+/* ------------------------------ Enum ------------------------------ */
 
-export var Enum = _.Enum = (function (exports) {
+export var Enum = _.Enum = (function (exports) {
     /* Enum type implementation.
      *
      * ### constructor
@@ -3713,14 +3711,14 @@ export var Enum = _.Enum = (function (exports) {
 
             freeze(this);
         }
-    });
+    });
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ MutationObserver ------------------------------ */
+/* ------------------------------ MutationObserver ------------------------------ */
 
-export var MutationObserver = _.MutationObserver = (function (exports) {
+export var MutationObserver = _.MutationObserver = (function (exports) {
     /* Safe MutationObserver, does nothing if MutationObserver is not supported.
      * 
      * ```javascript
@@ -3754,14 +3752,14 @@ export var MutationObserver = _.MutationObserver = (function (exports) {
             disconnect: function() {},
             takeRecords: function() {}
         });
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ Select ------------------------------ */
+/* ------------------------------ Select ------------------------------ */
 
-export var Select = _.Select = (function (exports) {
+export var Select = _.Select = (function (exports) {
     /* Simple wrapper of querySelectorAll to make dom selection easier.
      *
      * ### constructor
@@ -3847,14 +3845,14 @@ export var Select = _.Select = (function (exports) {
         first.length = i;
 
         return first;
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ $safeEls ------------------------------ */
+/* ------------------------------ $safeEls ------------------------------ */
 
-export var $safeEls = _.$safeEls = (function () {
+export var $safeEls = _.$safeEls = (function () {
     /* Convert value into an array, if it's a string, do querySelector.
      *
      * |Name  |Type                |Desc             |
@@ -3878,14 +3876,14 @@ export var $safeEls = _.$safeEls = (function () {
 
     function exports(val) {
         return toArr(isStr(val) ? new Select(val) : val);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ $attr ------------------------------ */
+/* ------------------------------ $attr ------------------------------ */
 
-export var $attr = _.$attr = (function () {
+export var $attr = _.$attr = (function () {
     /* Element attribute manipulation.
      *
      * Get the value of an attribute for the first element in the set of matched elements.
@@ -3974,14 +3972,14 @@ export var $attr = _.$attr = (function () {
                 el.setAttribute(name, val);
             });
         });
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ $data ------------------------------ */
+/* ------------------------------ $data ------------------------------ */
 
-export var $data = _.$data = (function () {
+export var $data = _.$data = (function () {
     /* Wrapper of $attr, adds data- prefix to keys.
      *
      * ```javascript
@@ -4010,14 +4008,14 @@ export var $data = _.$data = (function () {
         }
 
         return $attr(nodes, dataName, val);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ $css ------------------------------ */
+/* ------------------------------ $css ------------------------------ */
 
-export var $css = _.$css = (function () {
+export var $css = _.$css = (function () {
     /* Element css manipulation.
      *
      * Get the computed style properties for the first element in the set of matched elements.
@@ -4057,7 +4055,7 @@ export var $css = _.$css = (function () {
      */
 
     /* dependencies
-     * isStr isObj kebabCase isUndef contain isNum $safeEls startWith prefix 
+     * isStr isObj kebabCase isUndef contain isNum $safeEls prefix 
      */
 
     function exports(nodes, name, val) {
@@ -4107,14 +4105,14 @@ export var $css = _.$css = (function () {
         var needPx = isNum(val) && !contain(cssNumProps, kebabCase(key));
 
         return needPx ? val + 'px' : val;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ $insert ------------------------------ */
+/* ------------------------------ $insert ------------------------------ */
 
-export var $insert = _.$insert = (function (exports) {
+export var $insert = _.$insert = (function (exports) {
     /* Insert html on different position.
      *
      * ### before
@@ -4175,14 +4173,14 @@ export var $insert = _.$insert = (function (exports) {
                 node.insertAdjacentHTML(type, val);
             });
         };
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ $offset ------------------------------ */
+/* ------------------------------ $offset ------------------------------ */
 
-export var $offset = _.$offset = (function () {
+export var $offset = _.$offset = (function () {
     /* Get the position of the element in document.
      *
      * |Name   |Type                |Desc                  |
@@ -4216,14 +4214,14 @@ export var $offset = _.$offset = (function () {
             width: Math.round(clientRect.width),
             height: Math.round(clientRect.height)
         };
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ $property ------------------------------ */
+/* ------------------------------ $property ------------------------------ */
 
-export var $property = _.$property = (function (exports) {
+export var $property = _.$property = (function (exports) {
     /* Element property html, text, val getter and setter.
      *
      * ### html
@@ -4273,14 +4271,14 @@ export var $property = _.$property = (function (exports) {
                 node[name] = val;
             });
         };
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ $remove ------------------------------ */
+/* ------------------------------ $remove ------------------------------ */
 
-export var $remove = _.$remove = (function () {
+export var $remove = _.$remove = (function () {
     /* Remove the set of matched elements from the DOM.
      *
      * |Name   |Type                |Desc              |
@@ -4309,14 +4307,14 @@ export var $remove = _.$remove = (function () {
 
             if (parent) parent.removeChild(el);
         });
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ $show ------------------------------ */
+/* ------------------------------ $show ------------------------------ */
 
-export var $show = _.$show = (function () {
+export var $show = _.$show = (function () {
     /* Show elements.
      *
      * |Name   |Type                |Desc            |
@@ -4366,14 +4364,14 @@ export var $show = _.$show = (function () {
         }
 
         return elDisplay[elName];
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ delegate ------------------------------ */
+/* ------------------------------ delegate ------------------------------ */
 
-export var delegate = _.delegate = (function (exports) {
+export var delegate = _.delegate = (function (exports) {
     /* Event delegation.
      *
      * ### add
@@ -4499,7 +4497,7 @@ export var delegate = _.delegate = (function (exports) {
                 handlers.delegateCount = 0;
                 el.addEventListener(
                     type,
-                    function(e) {
+                    function() {
                         trigger.apply(el, arguments);
                     },
                     false
@@ -4561,14 +4559,14 @@ export var delegate = _.delegate = (function (exports) {
                 this.stopPropagation();
             }
         })
-    };
+    };
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ $event ------------------------------ */
+/* ------------------------------ $event ------------------------------ */
 
-export var $event = _.$event = (function (exports) {
+export var $event = _.$event = (function (exports) {
     /* bind events to certain dom elements.
      *
      * ```javascript
@@ -4608,14 +4606,14 @@ export var $event = _.$event = (function (exports) {
                 delegate[type](node, event, selector, handler);
             });
         };
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ concat ------------------------------ */
+/* ------------------------------ concat ------------------------------ */
 
-export var concat = _.concat = (function () {
+export var concat = _.concat = (function () {
     /* Concat multiple arrays into a single array.
      *
      * |Name  |Type |Desc              |
@@ -4646,14 +4644,103 @@ export var concat = _.concat = (function () {
         }
 
         return ret;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ some ------------------------------ */
+/* ------------------------------ mapObj ------------------------------ */
 
-export var some = _.some = (function () {
+export var mapObj = _.mapObj = (function () {
+    /* Map for objects.
+     *
+     * |Name    |Type    |Desc                          |
+     * |--------|--------|------------------------------|
+     * |obj     |object  |Object to iterate over        |
+     * |iteratee|function|Function invoked per iteration|
+     * |[ctx]   |*       |Function context              |
+     * |return  |object  |New mapped object             |
+     *
+     * ```javascript
+     * mapObj({a: 1, b: 2}, function (val, key) { return val + 1 }); // -> {a: 2, b: 3}
+     * ```
+     */
+
+    /* module
+     * env: all
+     * test: all
+     */
+
+    /* dependencies
+     * safeCb keys 
+     */
+
+    function exports(obj, iteratee, ctx) {
+        iteratee = safeCb(iteratee, ctx);
+
+        var _keys = keys(obj),
+            len = _keys.length,
+            ret = {};
+
+        for (var i = 0; i < len; i++) {
+            var curKey = _keys[i];
+            ret[curKey] = iteratee(obj[curKey], curKey, obj);
+        }
+
+        return ret;
+    }
+
+    return exports;
+})();
+
+/* ------------------------------ cloneDeep ------------------------------ */
+
+export var cloneDeep = _.cloneDeep = (function () {
+    /* Recursively clone value.
+     *
+     * |Name  |Type|Desc             |
+     * |------|----|-----------------|
+     * |val   |*   |Value to clone   |
+     * |return|*   |Deep cloned Value|
+     *
+     * ```javascript
+     * var obj = [{a: 1}, {a: 2}];
+     * var obj2 = cloneDeep(obj);
+     * console.log(obj[0] === obj2[1]); // -> false
+     * ```
+     */
+
+    /* module
+     * env: all
+     * test: all
+     */
+
+    /* dependencies
+     * isObj isFn isArr mapObj 
+     */
+
+    function exports(obj) {
+        if (isArr(obj)) {
+            return obj.map(function(val) {
+                return exports(val);
+            });
+        }
+
+        if (isObj(obj) && !isFn(obj)) {
+            return mapObj(obj, function(val) {
+                return exports(val);
+            });
+        }
+
+        return obj;
+    }
+
+    return exports;
+})();
+
+/* ------------------------------ some ------------------------------ */
+
+export var some = _.some = (function () {
     /* Check if predicate return truthy for any element.
      *
      * |Name     |Type        |Desc                                          |
@@ -4692,14 +4779,14 @@ export var some = _.some = (function () {
         }
 
         return false;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ $class ------------------------------ */
+/* ------------------------------ $class ------------------------------ */
 
-export var $class = _.$class = (function (exports) {
+export var $class = _.$class = (function (exports) {
     /* Element class manipulations.
      *
      * ### add
@@ -4807,14 +4894,14 @@ export var $class = _.$class = (function (exports) {
 
     function safeName(name) {
         return isStr(name) ? name.split(/\s+/) : toArr(name);
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ $ ------------------------------ */
+/* ------------------------------ $ ------------------------------ */
 
-export var $ = _.$ = (function () {
+export var $ = _.$ = (function () {
     /* jQuery like style dom manipulator.
      *
      * ### Available methods
@@ -4979,14 +5066,14 @@ export var $ = _.$ = (function () {
 
     function isGetter(name, val) {
         return isUndef(val) && isStr(name);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ memStorage ------------------------------ */
+/* ------------------------------ memStorage ------------------------------ */
 
-export var memStorage = _.memStorage = (function (exports) {
+export var memStorage = _.memStorage = (function (exports) {
     /* Memory-backed implementation of the Web Storage API.
      *
      * A replacement for environments where localStorage or sessionStorage is not available.
@@ -5065,14 +5152,14 @@ export var memStorage = _.memStorage = (function (exports) {
 
     function cloakedKeys() {
         return keys(cloak);
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ safeStorage ------------------------------ */
+/* ------------------------------ safeStorage ------------------------------ */
 
-export var safeStorage = _.safeStorage = (function () {
+export var safeStorage = _.safeStorage = (function () {
     /* Safe localStorage and sessionStorage.
      */
 
@@ -5081,40 +5168,40 @@ export var safeStorage = _.safeStorage = (function () {
      */
 
     function exports(type, memReplacement) {
-        if (isUndef(memReplacement)) memReplacement = true;
+      if (isUndef(memReplacement)) memReplacement = true
 
-        var ret;
+      var ret
 
-        switch (type) {
-            case 'local':
-                ret = window.localStorage;
-                break;
-            case 'session':
-                ret = window.sessionStorage;
-                break;
-        }
+      switch (type) {
+        case 'local':
+          ret = window.localStorage
+          break
+        case 'session':
+          ret = window.sessionStorage
+          break
+      }
 
-        try {
-            // Safari private browsing
-            var x = 'test-localStorage-' + Date.now();
-            ret.setItem(x, x);
-            var y = ret.getItem(x);
-            ret.removeItem(x);
-            if (y !== x) throw new Error();
-        } catch (e) {
-            if (memReplacement) return memStorage;
-            return;
-        }
+      try {
+        // Safari private browsing
+        var x = 'test-localStorage-' + Date.now()
+        ret.setItem(x, x)
+        var y = ret.getItem(x)
+        ret.removeItem(x)
+        if (y !== x) throw new Error()
+      } catch (e) {
+        if (memReplacement) return memStorage
+        return
+      }
 
-        return ret;
-    }
+      return ret
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ meta ------------------------------ */
+/* ------------------------------ meta ------------------------------ */
 
-export var meta = _.meta = (function () {
+export var meta = _.meta = (function () {
     /* Document meta manipulation, turn name and content into key value pairs.
      *
      * Get meta content with given name. If name is omitted, all pairs will be return.
@@ -5246,14 +5333,14 @@ export var meta = _.meta = (function () {
 
     function selectMeta(name) {
         return doc.querySelector('meta[name="' + name + '"]');
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ toNum ------------------------------ */
+/* ------------------------------ toNum ------------------------------ */
 
-export var toNum = _.toNum = (function (exports) {
+export var toNum = _.toNum = (function (exports) {
     /* Convert value to a number.
      *
      * |Name  |Type  |Desc            |
@@ -5286,14 +5373,14 @@ export var toNum = _.toNum = (function (exports) {
         if (!isStr(val)) return val === 0 ? val : +val;
 
         return +val;
-    };
+    };
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ ms ------------------------------ */
+/* ------------------------------ ms ------------------------------ */
 
-export var ms = _.ms = (function () {
+export var ms = _.ms = (function () {
     /* Convert time string formats to milliseconds.
      *
      * Turn time string into milliseconds.
@@ -5364,14 +5451,14 @@ export var ms = _.ms = (function () {
 
     var suffixList = ['y', 'd', 'h', 'm', 's'];
 
-    var regStrTime = /^((?:\d+)?\.?\d+) *(s|m|h|d|y)?$/;
+    var regStrTime = /^((?:\d+)?\.?\d+) *(s|m|h|d|y)?$/;
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ toInt ------------------------------ */
+/* ------------------------------ toInt ------------------------------ */
 
-export var toInt = _.toInt = (function () {
+export var toInt = _.toInt = (function () {
     /* Convert value to an integer.
      *
      * |Name  |Type  |Desc             |
@@ -5400,14 +5487,14 @@ export var toInt = _.toInt = (function () {
         val = toNum(val);
 
         return val - (val % 1);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ detectBrowser ------------------------------ */
+/* ------------------------------ detectBrowser ------------------------------ */
 
-export var detectBrowser = _.detectBrowser = (function () {
+export var detectBrowser = _.detectBrowser = (function () {
     /* Detect browser info using ua.
      *
      * |Name                    |Type  |Desc                              |
@@ -5493,14 +5580,14 @@ export var detectBrowser = _.detectBrowser = (function () {
 
         if (idx > -1)
             return toInt(ua.substring(idx + mark.length, ua.indexOf('.', idx)));
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ nextTick ------------------------------ */
+/* ------------------------------ nextTick ------------------------------ */
 
-export var nextTick = _.nextTick = (function (exports) {
+export var nextTick = _.nextTick = (function (exports) {
     /* Next tick for both node and browser.
      *
      * |Name|Type    |Desc            |
@@ -5541,14 +5628,14 @@ export var nextTick = _.nextTick = (function (exports) {
             throw new TypeError(fn + ' is not a function');
 
         return fn;
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ now ------------------------------ */
+/* ------------------------------ now ------------------------------ */
 
-export var now = _.now = (function (exports) {
+export var now = _.now = (function (exports) {
     /* Gets the number of milliseconds that have elapsed since the Unix epoch.
      *
      * ```javascript
@@ -5565,14 +5652,14 @@ export var now = _.now = (function (exports) {
         Date.now ||
         function() {
             return new Date().getTime();
-        };
+        };
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ restArgs ------------------------------ */
+/* ------------------------------ restArgs ------------------------------ */
 
-export var restArgs = _.restArgs = (function () {
+export var restArgs = _.restArgs = (function () {
     /* This accumulates the arguments passed into an array, after a given index.
      *
      * |Name      |Type    |Desc                                   |
@@ -5620,14 +5707,14 @@ export var restArgs = _.restArgs = (function () {
 
             return fn.apply(this, args);
         };
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ partial ------------------------------ */
+/* ------------------------------ partial ------------------------------ */
 
-export var partial = _.partial = (function (exports) {
+export var partial = _.partial = (function (exports) {
     /* Partially apply a function by filling in given arguments.
      *
      * |Name       |Type    |Desc                                    |
@@ -5660,14 +5747,14 @@ export var partial = _.partial = (function (exports) {
 
             return fn.apply(this, args);
         };
-    });
+    });
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ once ------------------------------ */
+/* ------------------------------ once ------------------------------ */
 
-export var once = _.once = (function (exports) {
+export var once = _.once = (function (exports) {
     /* Create a function that invokes once.
      *
      * |Name  |Type    |Desc                   |
@@ -5692,14 +5779,14 @@ export var once = _.once = (function (exports) {
      * partial before 
      */
 
-    exports = partial(before, 2);
+    exports = partial(before, 2);
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ Emitter ------------------------------ */
+/* ------------------------------ Emitter ------------------------------ */
 
-export var Emitter = _.Emitter = (function (exports) {
+export var Emitter = _.Emitter = (function (exports) {
     /* Event emitter class which provides observer pattern.
      *
      * ### on
@@ -5804,14 +5891,14 @@ export var Emitter = _.Emitter = (function (exports) {
                 obj._events = obj._events || {};
             }
         }
-    );
+    );
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ Logger ------------------------------ */
+/* ------------------------------ Logger ------------------------------ */
 
-export var Logger = _.Logger = (function (exports) {
+export var Logger = _.Logger = (function (exports) {
     /* Simple logger with level filter.
      *
      * ### constructor
@@ -5936,14 +6023,14 @@ export var Logger = _.Logger = (function (exports) {
                 SILENT: 5
             })
         }
-    );
+    );
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ Store ------------------------------ */
+/* ------------------------------ Store ------------------------------ */
 
-export var Store = _.Store = (function (exports) {
+export var Store = _.Store = (function (exports) {
     /* Memory storage.
      *
      * Extend from Emitter.
@@ -6093,14 +6180,14 @@ export var Store = _.Store = (function (exports) {
         save: function(data) {
             this._data = data;
         }
-    });
+    });
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ orientation ------------------------------ */
+/* ------------------------------ orientation ------------------------------ */
 
-export var orientation = _.orientation = (function (exports) {
+export var orientation = _.orientation = (function (exports) {
     /* Screen orientation helper.
      *
      * ### on
@@ -6158,14 +6245,14 @@ export var orientation = _.orientation = (function (exports) {
             }, 200);
         },
         false
-    );
+    );
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ perfNow ------------------------------ */
+/* ------------------------------ perfNow ------------------------------ */
 
-export var perfNow = _.perfNow = (function (exports) {
+export var perfNow = _.perfNow = (function (exports) {
     /* High resolution time up to microsecond precision.
      *
      * ```javascript
@@ -6208,14 +6295,14 @@ export var perfNow = _.perfNow = (function (exports) {
         exports = function() {
             return now() - loadTime;
         };
-    }
+    }
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ pxToNum ------------------------------ */
+/* ------------------------------ pxToNum ------------------------------ */
 
-export var pxToNum = _.pxToNum = (function () {
+export var pxToNum = _.pxToNum = (function () {
     /* Turn string like '0px' to number.
      */
 
@@ -6224,15 +6311,15 @@ export var pxToNum = _.pxToNum = (function () {
      */
 
     function exports(str) {
-        return toNum(str.replace('px', ''));
-    }
+      return toNum(str.replace('px', ''))
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ rmCookie ------------------------------ */
+/* ------------------------------ rmCookie ------------------------------ */
 
-export var rmCookie = _.rmCookie = (function () {
+export var rmCookie = _.rmCookie = (function () {
     /* Loop through all possible path and domain to remove cookie.
      *
      * |Name|Type  |Desc      |
@@ -6295,14 +6382,14 @@ export var rmCookie = _.rmCookie = (function () {
 
             return !cookie.get(key);
         }
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ rtrim ------------------------------ */
+/* ------------------------------ rtrim ------------------------------ */
 
-export var rtrim = _.rtrim = (function () {
+export var rtrim = _.rtrim = (function () {
     /* Remove chars or white-spaces from end of string.
      *
      * |Name  |Type        |Desc              |
@@ -6349,14 +6436,14 @@ export var rtrim = _.rtrim = (function () {
         }
 
         return end >= 0 ? str.substring(0, end + 1) : '';
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ trim ------------------------------ */
+/* ------------------------------ trim ------------------------------ */
 
-export var trim = _.trim = (function () {
+export var trim = _.trim = (function () {
     /* Remove chars or white-spaces from beginning end of string.
      *
      * |Name  |Type        |Desc              |
@@ -6387,14 +6474,14 @@ export var trim = _.trim = (function () {
         if (chars == null) return str.replace(regSpace, '');
 
         return ltrim(rtrim(str, chars), chars);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ getFileName ------------------------------ */
+/* ------------------------------ getFileName ------------------------------ */
 
-export var getFileName = _.getFileName = (function () {
+export var getFileName = _.getFileName = (function () {
     /* Extract file name from url.
      */
 
@@ -6403,19 +6490,19 @@ export var getFileName = _.getFileName = (function () {
      */
 
     function exports(url) {
-        var ret = last(url.split('/'));
+      var ret = last(url.split('/'))
 
-        if (ret.indexOf('?') > -1) ret = trim(ret.split('?')[0]);
+      if (ret.indexOf('?') > -1) ret = trim(ret.split('?')[0])
 
-        return ret === '' ? 'unknown' : ret;
-    }
+      return ret === '' ? 'unknown' : ret
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ query ------------------------------ */
+/* ------------------------------ query ------------------------------ */
 
-export var query = _.query = (function (exports) {
+export var query = _.query = (function (exports) {
     /* Parse and stringify url query strings.
      *
      * ### parse
@@ -6499,14 +6586,14 @@ export var query = _.query = (function (exports) {
         }
     };
 
-    var regIllegalChars = /^(\?|#|&)/g;
+    var regIllegalChars = /^(\?|#|&)/g;
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ Url ------------------------------ */
+/* ------------------------------ Url ------------------------------ */
 
-export var Url = _.Url = (function (exports) {
+export var Url = _.Url = (function (exports) {
     /* Simple url manipulator.
      *
      * ### constructor
@@ -6715,14 +6802,14 @@ export var Url = _.Url = (function (exports) {
 
     var regProto = /^([a-z0-9.+-]+:)/i,
         regPort = /:[0-9]*$/,
-        hostEndingChars = ['/', '?', '#'];
+        hostEndingChars = ['/', '?', '#'];
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ ajax ------------------------------ */
+/* ------------------------------ ajax ------------------------------ */
 
-export var ajax = _.ajax = (function () {
+export var ajax = _.ajax = (function () {
     /* Perform an asynchronous HTTP request.
      *
      * |Name   |Type  |Desc        |
@@ -6731,7 +6818,7 @@ export var ajax = _.ajax = (function () {
      *
      * Available options:
      *
-     * |Name                                         |Type         |Desc                      |
+     * |Name                                         |Type         |Desc                       |
      * |---------------------------------------------|-------------|---------------------------|
      * |url                                          |string       |Request url                |
      * |data                                         |string object|Request data               |
@@ -6885,14 +6972,14 @@ export var ajax = _.ajax = (function () {
             success: success,
             dataType: dataType
         };
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ type ------------------------------ */
+/* ------------------------------ type ------------------------------ */
 
-export var type = _.type = (function () {
+export var type = _.type = (function () {
     /* Determine the internal JavaScript [[Class]] of an object.
      *
      * |Name  |Type  |Desc                      |
@@ -6929,14 +7016,14 @@ export var type = _.type = (function () {
         return ret[1].toLowerCase();
     }
 
-    var regObj = /^\[object\s+(.*?)]$/;
+    var regObj = /^\[object\s+(.*?)]$/;
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ stringify ------------------------------ */
+/* ------------------------------ stringify ------------------------------ */
 
-export var stringify = _.stringify = (function () {
+export var stringify = _.stringify = (function () {
     /* JSON stringify with support for circular object, function etc.
      *
      * Undefined is treated as null value.
@@ -7004,14 +7091,14 @@ export var stringify = _.stringify = (function () {
 
             return val;
         };
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ LocalStore ------------------------------ */
+/* ------------------------------ LocalStore ------------------------------ */
 
-export var LocalStore = _.LocalStore = (function (exports) {
+export var LocalStore = _.LocalStore = (function (exports) {
     /* LocalStorage wrapper.
      * 
      * Extend from Store.
@@ -7058,14 +7145,14 @@ export var LocalStore = _.LocalStore = (function (exports) {
             if (isEmpty(data)) return localStorage.removeItem(this._name);
             localStorage.setItem(this._name, stringify(data));
         }
-    });
+    });
 
-    return exports;
-})({});
+    return exports;
+})({});
 
-/* ------------------------------ stripHtmlTag ------------------------------ */
+/* ------------------------------ stripHtmlTag ------------------------------ */
 
-export var stripHtmlTag = _.stripHtmlTag = (function () {
+export var stripHtmlTag = _.stripHtmlTag = (function () {
     /* Strip html tags from a string.
      *
      * |Name  |Type  |Desc           |
@@ -7087,14 +7174,14 @@ export var stripHtmlTag = _.stripHtmlTag = (function () {
 
     function exports(str) {
         return str.replace(regHtmlTag, '');
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ tryIt ------------------------------ */
+/* ------------------------------ tryIt ------------------------------ */
 
-export var tryIt = _.tryIt = (function () {
+export var tryIt = _.tryIt = (function () {
     /* Run function in a try catch.
      * 
      * |Name|Type    |Desc                 |
@@ -7131,14 +7218,14 @@ export var tryIt = _.tryIt = (function () {
             cb(e);
             return;
         }
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ uniqId ------------------------------ */
+/* ------------------------------ uniqId ------------------------------ */
 
-export var uniqId = _.uniqId = (function () {
+export var uniqId = _.uniqId = (function () {
     /* Generate a globally-unique id.
      *
      * |Name  |Type  |Desc              |
@@ -7162,14 +7249,14 @@ export var uniqId = _.uniqId = (function () {
         var id = ++idCounter + '';
 
         return prefix ? prefix + id : id;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ unique ------------------------------ */
+/* ------------------------------ unique ------------------------------ */
 
-export var unique = _.unique = (function () {
+export var unique = _.unique = (function () {
     /* Create duplicate-free version of an array.
      *
      * |Name     |Type    |Desc                         |
@@ -7208,14 +7295,14 @@ export var unique = _.unique = (function () {
 
     function isEqual(a, b) {
         return a === b;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ viewportScale ------------------------------ */
+/* ------------------------------ viewportScale ------------------------------ */
 
-export var viewportScale = _.viewportScale = (function () {
+export var viewportScale = _.viewportScale = (function () {
     /* Get viewport scale.
      * 
      * ```javascript
@@ -7262,14 +7349,14 @@ export var viewportScale = _.viewportScale = (function () {
         if (isNaN(ret)) return 1;
 
         return ret;
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
-/* ------------------------------ wrap ------------------------------ */
+/* ------------------------------ wrap ------------------------------ */
 
-export var wrap = _.wrap = (function () {
+export var wrap = _.wrap = (function () {
     /* Wrap the function inside a wrapper function, passing it as the first argument.
      *
      * |Name   |Type    |Desc            |
@@ -7298,9 +7385,9 @@ export var wrap = _.wrap = (function () {
 
     function exports(fn, wrapper) {
         return partial(wrapper, fn);
-    }
+    }
 
-    return exports;
-})();
+    return exports;
+})();
 
 export default _;
\ No newline at end of file
diff --git a/test/info.js b/test/info.js
index ddc124c..9a3b02a 100644
--- a/test/info.js
+++ b/test/info.js
@@ -39,6 +39,12 @@ describe('info', function() {
     expect($tool.find('.eruda-content')).toContainText('eruda')
   })
 
+  it('get', function() {
+    expect(tool.get()).toEqual([{ name: 'test', val: 'eruda' }])
+    expect(tool.get('test')).toBe('eruda')
+    expect(tool.get('test2')).not.toBeDefined()
+  })
+
   it('remove', function() {
     tool.remove('test')
     expect($tool.find('li')).toHaveLength(0)