Remove Single Query String from URL Using Reg Ex and Javascript

Question

I've read other pages supplying the RegEx, but the post doesn't seem to be working in my tests. I'm just wanting to remove the page=X portion from a url string (/search?page=2&some_var=foo).

When I try this:

urlStr = req.url
urlStr.replace(/&foo(=[^&]*)?|^foo(=[^&]*)?&?/, '')

It doesn't remove the page portion. If I move the page to the end or middle of the string the RegEx elector works.

Anyone have a better Reg Ex solution? I'm only going to have a few query strings so I'm pretty sure I'm not going to run into edge cases.

youtube.com/watch?v=bobp5OHVsWY

AlbertEngelB
– AlbertEngelB

2013-02-01 18:03:23 +00:00
Commented Feb 1, 2013 at 18:03 — AlbertEngelB
– AlbertEngelB, Commented Feb 1, 2013 at 18:03

Joseph Silber · Accepted Answer · 2013-02-01 17:56:26Z

5

urlStr = urlStr.replace(/\bpage=[^&]+/, '');

answered Feb 1, 2013 at 17:56

Joseph Silber

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3 Comments

AlbertEngelB Over a year ago

You know what's funny? The reason I ran into this was because I failed to actually replace urlStr (I just did urlstr.replace()). Haha!

JDB Over a year ago

Perhaps /\bpage.../ to prevent false matches (e.g. 'multipage=false')

AlbertEngelB Over a year ago

Basically I just did urlStr.replace(blah blah), not urlStr = urlStr.replace(). Gotta love putting your foot in your mouth!

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