# Node.js 计算字符串 Sha1

- Link: https://www.ixiqin.com/2019/12/14/node-js-calculation-string-sha1/
- Published: 2019-12-14T11:57:34+08:00
- Author: 白宦成

```javascript
    const crypto = require('crypto'),
          sha1 = crypto.createHash('sha1');
          sha1.update("Text");
          console.log(sha1.digest('hex'));
    Code language: JavaScript (javascript)
    ```

你可以通过计算 Digest 来实现判断文字是否发生变化.