Find Replace Short Part of URL using Javascript

Question

Assume I have the following URL stored in variable called content:

http://www.example.com/watch?v=4444444&feature=related

Problem:

The final output would look like:

http://www.example.com/embed/4444444

I tried these two steps but didn't work:

content = content.replace('/watch?v=/', 'embed/');
content = content.replace('&*/g','');

The URL in page source code appears as:

http://www.example.com/watch?v=4444444&feature=related

Mark Byers · Accepted Answer · 2011-11-12 08:17:45Z

3

You have many errors:

You are using a regular expression when you only need a string.
You are writing your regular expressions as strings.
To write 'match any characters' you need to write '.*', not just '*'. The star modifies the previous token.
There is no need to use the g flag here.

Try this instead:

 content = content.replace('watch?v=', 'embed/').replace(/&.*/, '');

answered Nov 12, 2011 at 8:11

Mark Byers

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