JavaScript Regex - match without the trailing slash

Question

Given the following regular expression:

\/page1\/id\/(.*)\/type\/(.*)\/$

Which is to match the following URL path (and works):

/page1/id/331/type/test23/

How can I modify the regex to still match with the last slash missing, i.e:

/page1/id/331/type/test23

Thank you!

mpen · Accepted Answer · 2015-11-26 20:05:16Z

4

Just throw a question mark before the final slash to make it optional.

\/page1\/id\/\d+\/type\/[^\/]+\/?$

Also, you may want to make that ID non-greedy, or match numbers specifically (updated regex for you).

answered Nov 26, 2015 at 20:05

mpen

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8 Comments

Leon Revill Over a year ago

Thank you for the quick reply. The problem I have with added a ? after the slash, it then matches anything after it (.e.g /page1/id/331/type/test23/3234/234/234/234/).

mpen Over a year ago

No. That's not the ?s fault. It's your greedy .*s in the middle, which I've removed for you. "Greedy" meaning it will consume as much as it can.

Leon Revill Over a year ago

Absolutely brilliant! Thank you.

Bram Vanroy Over a year ago

Isn't \d+ equally greedy? Obviously, you solve that by restricting to digits, but I don't see what that has to do with greediness?

Leon Revill Over a year ago

One more question, how would I ignore any ?key=value strings at the end? (Would it be best to just strip them out before matching?)

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