I can't get my RegEx expression to work in JavaScript

Question

I'm using the following on my site:

$('body').html($('body').html().replace(>> ?(\d+)/g, '<b>$&</b>'));

(I'm using jQuery)

The Regular Expression I'm using is >> ?(\d+)/g. The Bold below shows what it should be replacing:

This passage of text >> 124949200 contains two slightly >>20993910 different regular expressions.

Now, I've used this tool here: http://regexpal.com/ and my RegEx works fine. When I actually implement it, however, it doesn't work.

Any ideas?

@Joseph I'll admit, today is my first work with RegEx. Thanks for pointing that out though, I'll make sure I go and add that now. +1 for you! — Freesnöw
– Freesnöw, Commented Apr 22, 2012 at 0:57

Karl Nicoll · Accepted Answer · 2012-04-22 00:46:35Z

1

JQuery's html() function appears to be outputting the >> as encoded characters: >>. Simply change your regular expression to this:

$('body').html($('body').html().replace(/&gt;&gt; ?(\d+)/g, '<b>$&</b>'));

edited Apr 22, 2012 at 0:46

answered Apr 22, 2012 at 0:38

Karl Nicoll

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2 Comments

Freesnöw Over a year ago

Wow, nice catch. I figured it must be something obscure like that! I'll Have to make sure I keep that in mind for next time...

Karl Nicoll Over a year ago

@DadeLamkins - You and me both! I only noticed it because it showed up like that in an alert box while I was playing with your regex. In the HTML it obviously just shows up as >>.

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