This is a discussion on "RegExp.$1" within the JavaScript Forum section. This forum, and the thread "RegExp.$1 are both part of the Program Your Website category.
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RegExp.$1
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Sep 30th, 2007, 20:19
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RegExp.$1
I have worked with regular expressions before but have heard of regexp.$1 $2 and $3, what do they actually do and what are they used for?
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Oct 1st, 2007, 04:11
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Re: RegExp.$1
As far as I know $1, $2 and $3 etc.. is a way to reference the matches of a regex replace in PHP (and possibly other implementations).
If you want to replace something in a regex you can include the original source by using the associated match using $x. I have not seen or heard anything that would use $1, $2 etc.. in javascript.
Last Blog Entry: The wannabe juggler's quest (Oct 27th, 2007)
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