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Detailed explanation of the method of comma-separated numerical thousandths using JS based on regular expressions

怪我咯

Release： 2017-07-06 11:31:05

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这篇文章主要介绍了JS基于正则实现数字千分位用逗号分隔的方法,涉及javascript 正则表达式操作数字的相关实现技巧,需要的朋友可以参考下

本文实例讲述了JS基于正则实现数字千分位用逗号分隔的方法。分享给大家供大家参考，具体如下：

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>js千分位逗号隔开</title>
</head>
<body>
<script >
var a = 222122122.6754; 
var b = a.toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, &#39;$1,&#39;);//使用正则替换，每隔三个数加一个&#39;,&#39; 
console.log(b)
</script>
</body>
</html>

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