Extract parameter value from url using regular expressions

Question

This should be very simple (when you know the answer). From this question

I want to give the posted solution a try. My question is:

How to get the parameter

Answer 1

You almost had it, just need to escape special regex chars:

regex = /http\:\/\/www\.youtube\.com\/watch\?v=([\w-]{11})/;

url = 'http://www.youtube.com/watch?v=Ahg6qcgoay4';
id = url.match(regex)[1]; // id = 'Ahg6qcgoay4'

Edit: Fix for regex by soupagain.