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# ❄ idgenerator-TypeScript
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# ❄ idgenerator-TypeScript
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## 介绍
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## 介绍
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项目更多介绍参照:https://github.com/yitter/idgenerator
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项目更多介绍参照:https://github.com/yitter/idgenerator
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代码贡献者:zhupengfei(在 bubao 布宝 的JS基础上改版,感谢bubao 布宝)
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代码贡献者:zhupengfei(在 bubao 布宝 的JS基础上改版,感谢bubao 布宝)
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js Number 类型最大数值:9007199254740992(16位),
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js Number 类型最大数值:9007199254740992(16位),
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在JS中没有bigint类型,所以建议将ID控制在16位以内,统一使用number类型
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在JS中没有bigint类型,所以建议将ID控制在16位以内,统一使用number类型
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## 使用
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## 使用
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### 1.文件引用
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### 1.文件引用
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```js
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```js
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId})
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId})
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let id1 = gen1.NextId()
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let id1 = gen1.NextId()
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console.log(id1, id1.toString().length)
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console.log(id1, id1.toString().length)
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```
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```
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### 2.npm库安装
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### 2.npm库安装
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```sh
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```sh
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npm i simple-flakeid
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npm i simple-flakeid
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```
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```
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```js
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```js
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const snowId = require('simple-flakeid')
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const snowId = require('simple-flakeid')
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let gen1 = new snowId.SnowflakeIdv1({ workerId: 1 })
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let gen1 = new snowId.SnowflakeIdv1({ workerId: 1 })
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for (let i = 0; i < 10; i++) {
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for (let i = 0; i < 10; i++) {
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let id1 = gen1.NextId()
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let id1 = gen1.NextId()
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console.log(`${i} ID:${id1} ${typeof id1} length:${id1.toString().length}`)
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console.log(`${i} ID:${id1} ${typeof id1} length:${id1.toString().length}`)
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}
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}
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```
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```
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## function
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## function
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### function NextId()
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### function NextId()
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根据输出数值判断,小于number最大值时输出number类型,大于时输出bigint
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根据输出数值判断,小于number最大值时输出number类型,大于时输出bigint
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### function NextNumber()
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### function NextNumber()
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始终输出number类型,超过时throw error
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始终输出number类型,超过时throw error
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### function NextBigId()
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### function NextBigId()
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始终输出bigint类型
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始终输出bigint类型
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## 测试
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## 测试
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```bash
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```bash
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ts-node test/test1.ts
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ts-node test/test1.ts
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```
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```
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## 使用
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## 使用
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```js
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```js
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId})
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId})
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let id1 = gen1.NextId()
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let id1 = gen1.NextId()
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console.log(id1, id1.toString().length)
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console.log(id1, id1.toString().length)
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```
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```
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## 示例
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## 示例
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```js
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```js
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 6 })
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 6 })
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for (let i = 0; i < 10; i++) {
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for (let i = 0; i < 10; i++) {
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let id1 = gen1.NextId()
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let id1 = gen1.NextId()
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console.log(`${i} ID:${id1} 长度:${id1.toString().length}`)
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console.log(`${i} ID:${id1} 长度:${id1.toString().length}`)
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}
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}
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$ ts-node test/test4.ts
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$ ts-node test/test4.ts
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0 ID:234712552579141 长度:15
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0 ID:234712552579141 长度:15
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1 ID:234712552587333 长度:15
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1 ID:234712552587333 长度:15
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2 ID:234712552587334 长度:15
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2 ID:234712552587334 长度:15
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3 ID:234712552587335 长度:15
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3 ID:234712552587335 长度:15
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4 ID:234712552587336 长度:15
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4 ID:234712552587336 长度:15
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5 ID:234712552591429 长度:15
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5 ID:234712552591429 长度:15
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6 ID:234712552591430 长度:15
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6 ID:234712552591430 长度:15
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7 ID:234712552591431 长度:15
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7 ID:234712552591431 长度:15
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8 ID:234712552591432 长度:15
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8 ID:234712552591432 长度:15
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9 ID:234712552591433 长度:15
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9 ID:234712552591433 长度:15
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 11 })
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 11 })
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for (let i = 0; i < 10; i++) {
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for (let i = 0; i < 10; i++) {
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let id1 = gen1.NextId()
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let id1 = gen1.NextId()
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console.log(`${i} ID:${id1} ${typeof id1} 长度:${id1.toString().length}`)
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console.log(`${i} ID:${id1} ${typeof id1} 长度:${id1.toString().length}`)
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}
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}
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$ ts-node test/test4.ts
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$ ts-node test/test4.ts
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0 ID:7510958933018629 number 长度:16
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0 ID:7510958933018629 number 长度:16
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1 ID:7510958933280773 number 长度:16
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1 ID:7510958933280773 number 长度:16
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2 ID:7510958933280774 number 长度:16
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2 ID:7510958933280774 number 长度:16
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3 ID:7510958933280775 number 长度:16
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3 ID:7510958933280775 number 长度:16
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4 ID:7510958933411845 number 长度:16
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4 ID:7510958933411845 number 长度:16
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5 ID:7510958933411846 number 长度:16
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5 ID:7510958933411846 number 长度:16
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6 ID:7510958933542917 number 长度:16
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6 ID:7510958933542917 number 长度:16
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7 ID:7510958933542918 number 长度:16
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7 ID:7510958933542918 number 长度:16
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8 ID:7510958933542919 number 长度:16
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8 ID:7510958933542919 number 长度:16
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9 ID:7510958933673989 number 长度:16
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9 ID:7510958933673989 number 长度:16
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 12 })
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 12 })
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for (let i = 0; i < 10; i++) {
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for (let i = 0; i < 10; i++) {
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let id1 = gen1.NextId()
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let id1 = gen1.NextId()
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console.log(`${i} ID:${id1} ${typeof id1} 长度:${id1.toString().length}`)
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console.log(`${i} ID:${id1} ${typeof id1} 长度:${id1.toString().length}`)
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}
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}
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$ ts-node test/test4.ts
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$ ts-node test/test4.ts
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0 ID:15021931987734533 bigint 长度:17
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0 ID:15021931987734533 bigint 长度:17
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1 ID:15021931987996677 bigint 长度:17
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1 ID:15021931987996677 bigint 长度:17
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2 ID:15021931987996678 bigint 长度:17
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2 ID:15021931987996678 bigint 长度:17
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3 ID:15021931987996679 bigint 长度:17
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3 ID:15021931987996679 bigint 长度:17
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4 ID:15021931987996680 bigint 长度:17
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4 ID:15021931987996680 bigint 长度:17
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5 ID:15021931988258821 bigint 长度:17
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5 ID:15021931988258821 bigint 长度:17
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6 ID:15021931988258822 bigint 长度:17
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6 ID:15021931988258822 bigint 长度:17
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7 ID:15021931988258823 bigint 长度:17
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7 ID:15021931988258823 bigint 长度:17
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8 ID:15021931988258824 bigint 长度:17
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8 ID:15021931988258824 bigint 长度:17
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9 ID:15021931988520965 bigint 长度:17
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9 ID:15021931988520965 bigint 长度:17
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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import { snowflakeIdv1 } from '../snowflakeIdv1'
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 13 })
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 13 })
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for (let i = 0; i < 10; i++) {
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for (let i = 0; i < 10; i++) {
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let id1 = gen1.NextId()
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let id1 = gen1.NextId()
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console.log(`${i} ID:${id1} ${typeof id1} 长度:${id1.toString().length}`)
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console.log(`${i} ID:${id1} ${typeof id1} 长度:${id1.toString().length}`)
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}
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}
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$ ts-node test/test4.ts
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$ ts-node test/test4.ts
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0 ID:30043877337997317 bigint 长度:17
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0 ID:30043877337997317 bigint 长度:17
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1 ID:30043877338521605 bigint 长度:17
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1 ID:30043877338521605 bigint 长度:17
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2 ID:30043877338521606 bigint 长度:17
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2 ID:30043877338521606 bigint 长度:17
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3 ID:30043877339045893 bigint 长度:17
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3 ID:30043877339045893 bigint 长度:17
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4 ID:30043877339045894 bigint 长度:17
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4 ID:30043877339045894 bigint 长度:17
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5 ID:30043877339045895 bigint 长度:17
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5 ID:30043877339045895 bigint 长度:17
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6 ID:30043877339045896 bigint 长度:17
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6 ID:30043877339045896 bigint 长度:17
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7 ID:30043877339570181 bigint 长度:17
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7 ID:30043877339570181 bigint 长度:17
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8 ID:30043877339570182 bigint 长度:17
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8 ID:30043877339570182 bigint 长度:17
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9 ID:30043877339570183 bigint 长度:17
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9 ID:30043877339570183 bigint 长度:17
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<<<<<<< HEAD
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=======
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```
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## 其他帮助
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在mysql中int类型最大长度是10位数字,由于本算法默认生成的是15位,最短也是11位,所以在mysql中需要使用bigint数据类型
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```
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## 同时兼容number和bigint的写法
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如果您觉得这个用法更好,可以手动替换对应方法
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```js
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/**
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* 生成ID
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* @returns
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*/
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public NextId(): number | bigint {
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if (this._IsOverCost) {
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//
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let id = this.NextOverCostId()
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if (id >= 9007199254740992n)
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return id
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else
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return parseInt(id.toString())
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} else {
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//
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let id = this.NextNormalId()
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if (id >= 9007199254740992n)
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return id
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else
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return parseInt(id.toString())
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}
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}
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>>>>>>> 91459b1538b24a03174b20eba10db410d8ef5268
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```
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## 其他帮助
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在mysql中int类型最大长度是10位数字,由于本算法默认生成的是15位,最短也是11位,所以在mysql中需要使用bigint数据类型
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|||||||
Reference in New Issue
Block a user