这次给大家带来正则表达式怎样实现保留2位小数的判定，正则表达式实现保留2位小数判定的注意事项有哪些，下面就是实战案例，一起来看一下。
废话不多说了，直接给大家贴代码了，具体代码如下所示：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="js/jquery.min.js" ></script>
</head>
<body>
<li><a class="ba">6.88888888</a></li>
<script>
var b=$('.ba').html();
onload = function(){
var a = b;
var aNew;
var re = /([0-9]+\.[0-9]{2})[0-9]*/;
aNew = a.replace(re,"$1");
$(".ba").html(aNew)
}
</script>
</body>
</html>相信看了本文案例你已经掌握了方法，更多精彩请关注php中文网其它相关文章！
推荐阅读：
The above is the detailed content of How to implement regular expression judgment to retain 2 decimal places. For more information, please follow other related articles on the PHP Chinese website!
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
