# JavaScript 数字验证正则表达式 - 负整数的验证

**URL:** <https://www.isharkfly.com/t/javascript/8758>\
**Category:** 前端\
**Created:** [October 31, 2012, 2:25am UTC](https://www.isharkfly.com/t/javascript/8758 "2012-10-31T02:25:23Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![honeymoose](https://www.isharkfly.com/user_avatar/www.isharkfly.com/honeymoose/32/20796_2.png) [@honeymoose](https://www.isharkfly.com/u/honeymoose)\
**Post date:** [October 31, 2012, 2:25am UTC](https://www.isharkfly.com/t/javascript/8758/1 "2012-10-31T02:25:23Z")

</div>

```auto
/^-\d+$/.test(str)
```