jQuery: create regex pattern from variable

Question

I'm trying to create a regex pattern out of a variable like:

var tag = "style";
var pattern = "/<"+tag+"[^>]*>((\\n|.)*)<\\/"+tag+">/gi";

but it won't work - anyone can tell me what's wrong?

What are you trying to accomplish? There's probably a better way to find the html tag that you're looking for using jquery selectors. — James Kolpack
– James Kolpack, Commented Mar 4, 2010 at 0:44

PetersenDidIt · Accepted Answer · 2010-03-04 00:44:54Z

5

Use the RegExp object

var tag = "style";
var pattern = new RegExp("<"+tag+"[^>]*>((\\n|.)*)<\\/"+tag+">","gi");

answered Mar 4, 2010 at 0:44

PetersenDidIt

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Comments

Community · Accepted Answer · 2017-05-23 11:47:38Z

1

In general, matching html tags with regex isn't a good idea. See explanation here.

CommunityBot

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answered Mar 4, 2010 at 0:43

James Kolpack

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Scott Evernden · Accepted Answer · 2010-03-04 00:46:01Z

0

var re = new RegExp(string) ..

answered Mar 4, 2010 at 0:46

Scott Evernden

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