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How to get substring from string javascript

Posted on 2009-04-01
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Last Modified: 2012-05-06
Hi, I have this string: http://msn.com/news/Stories/65789?id=12&type=software

How to get 65789??
http://msn.com/news/Stories/65789?id=12&type=software

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Question by:Saroj13
4 Comments
 
LVL 17

Expert Comment

by:k_murli_krishna
ID: 24042506
Please refer:
JavaScript substring() Method
http://www.w3schools.com/jsref/jsref_substring.asp
JavaScript - Strings
http://www.quirksmode.org/js/strings.html
Javascript: substr() v.s. substring() « Rudimentary Art of ...
http://rapd.wordpress.com/2007/07/12/javascript-substr-vs-substring/
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LVL 12

Expert Comment

by:alien109
ID: 24042526
var str = "http://msn.com/news/Stories/65789?id=12&type=software";
var regEx = /([0-9]+)/;
var match = regEx.exec(str)[0];
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LVL 5

Expert Comment

by:prokvk
ID: 24042531
i.e. like this:



var str = 'http://msn.com/news/Stories/65789?id=12&type=software';
            
            var reg = new RegExp('(.*)Stories\/([0-9]+)\?(.*)','i');
            
            var val = str.replace(reg,'$2');
            
            alert(val);

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Accepted Solution

by:
petiex earned 2000 total points
ID: 24042694
Or, you could just use string functions
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title></title>
    <script type="text/javascript">
        <!--
        function testFunction(str){
         alert(getStringBetweenLastSlashAndQuestionMark(str)+" should be 65789");
        }
        function getStringBetweenLastSlashAndQuestionMark(str){
            return str.substring(str.lastIndexOf("/")+1,str.indexOf("?"));
        }
                -->
    </script>
</head>
<body>
<a href="#" onclick="javascript:testFunction('http://msn.com/news/Stories/65789?id=12&type=software'); return false;">click</a>
</body>
</html>

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