几个小正则

最新推荐文章于 2025-01-20 19:16:41 发布

原创最新推荐文章于 2025-01-20 19:16:41 发布 · 157 阅读

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CC 4.0 BY-SA版权

本文介绍了一种使用正则表达式解析URL的方法，并展示了如何通过JavaScript实现数字、日期的格式化。此外还提供了电子邮件验证的正则表达式示例。


//url解析
var url = 'http://weibo.com/u/1130985012/home?wvr=5#123456';
var re = /^(?:([a-zA-z]+):)?(\/{0,3})([0-9.\-a-zA-z]+)(?::(\d+))?(?:\/([^?#]*))?(?:\?([^#]*))?(?:#(.*))?$/;
var result = re.exec(url)
console.log(result)
var names = ['url','protocol','slash','host','port','path','query','hash']
for(var i=0;i<names.length;i++){
	console.log(names[i]+':'+result[i])
}


//数字格式化
str.replace(/(\d{1,3})(?=(\d{3})+(?:$|\.))/g, "$1,")

//日期格式化
v.replace(/^(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})$/,'$1/$2/$3 $4:$5:$6')

//email
/^(\w)+(\.\w+)*@(\w)+((\.\w{2,3}){1,3})$/;