[英]Javascript to validate URL
I have a text box where the user will enter a URL, and I need to validate this URL. 我有一个文本框,用户将在其中输入URL,并且需要验证此URL。
For example: I'm only trying to validate this part: 例如:我只是想验证这一部分:
(https/http/ftp://www.gmail.two letters here)
I mentioned two letters there because many TLDs exist such as .cc, .me, etc. 我之所以提到两个字母是因为存在许多顶级域名,例如.cc,.me等。
I tried this regex which did not work: 我尝试了这个不起作用的正则表达式:
(/((http|https):\/\/(\w+:{0,1}\w*@)?(\S+)|)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/)
Correct me if I'm wrong. 如果我错了纠正我。
Could just simply use: 可以简单地使用:
((https?|ftp):\/\/)+([\w\d\.]+([\w]{2,6})?)
Depending on what your need is, you can go with simplicity or with... overkill. 根据您的需求,您可以选择简单或过度使用。 :p
:p
<html>
<div>
<ul>
<li>http://www.stackoverflow.com</li>
<li>httpwww.stackoverflow.com</li>
<li>a.b.c</li>
</ul>
</div>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script type="text/javascript">
function IsURL(str_url){
var strRegex = "[a-zA-z]+://[^\s]*";
var re=new RegExp(strRegex);
if (re.test(str_url)){
return (true);
}else{
return (false);
}
}
$(document).ready(function(){
$("li").click(function(){
var url=$(this).text();
alert(url+" /n IsURL:"+IsURL(url));
});
});
</script>
</html>
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