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@@ -6,6 +6,10 @@ |
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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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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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执行测试代码 |
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@@ -22,12 +26,121 @@ import { snowflakeIdv1 } from '../snowflakeIdv1' |
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const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId |
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const Method = process.env.Method == undefined ? 1 : process.env.Method |
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, Method: Method }) |
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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId}) |
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let id1 = gen1.NextId() |
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console.log(id1, id1.toString().length) |
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``` |
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## 示例 |
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```js |
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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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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 6 }) |
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for (let i = 0; i < 10; i++) { |
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let id1 = gen1.NextId() |
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console.log(`${i} ID:${id1} 长度:${id1.toString().length}`) |
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} |
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$ ts-node test/test4.ts |
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0 ID:234712552579141 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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3 ID:234712552587335 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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6 ID:234712552591430 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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9 ID:234712552591433 长度:15 |
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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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let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, SeqBitLength: 11 }) |
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for (let i = 0; i < 10; i++) { |
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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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} |
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$ ts-node test/test4.ts |
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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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2 ID:7510958933280774 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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5 ID:7510958933411846 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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8 ID:7510958933542919 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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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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for (let i = 0; i < 10; i++) { |
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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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} |
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$ ts-node test/test4.ts |
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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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2 ID:15021931987996678 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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5 ID:15021931988258821 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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8 ID:15021931988258824 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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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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for (let i = 0; i < 10; i++) { |
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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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} |
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$ ts-node test/test4.ts |
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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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2 ID:30043877338521606 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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5 ID:30043877339045895 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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8 ID:30043877339570182 bigint 长度:17 |
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9 ID:30043877339570183 bigint 长度:17 |
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``` |
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