Regex match function in Javascript

Question

I am using a positive lookahead regex to get the matched string, but it gives me Syntax error in regular expression in IE8 what am I doing wrong. I want to match the very 1st occurrence.

Matching input

<IMG title="Configuration older than 90 days" alt=true src="http://indwdev:6130/include/images/expired.png"><IMG title="Converted configuration" alt=true src="http://indwdev:6130/include/images/convert.png">

My regex str.match(/(?<=Converted configuration" alt=)[\w]+(?=)/)

Here is a jsfiddle link.

If the input is HTML, you can use jQuery to parse the HTML and search through the DOM as per normal. Regex is a sub par solution in this case. — nhahtdh
– nhahtdh, Commented Dec 10, 2012 at 10:15

int3 · Accepted Answer · 2012-12-10 09:28:35Z

2

Javascript doesn't support positive lookbehinds in its regexes. You can use

str.match(/Converted configuration" alt=([\w]+)/)[1]

edited Dec 10, 2012 at 9:28

answered Dec 10, 2012 at 8:08

int3

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AabinGunz Over a year ago

I want to fetch true in this case

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