Regex for youtube channel URL

how can I validate youtube channel URL using REGEX ?

I found this pattern but it doesn’t work properly

/((http|https)://|)(www.|)youtube.com/(channel/|user/|)[a-zA-Z0-9]{1,}/

Can anyone help me ?

Answer

Your problem is the extra pipe after user/

Here is the corrected regex:

((http|https)://|)(www.|)youtube.com/(channel/|user/)[a-zA-Z0-9_-]{1,}

The reason this is a problem is because it make (channel|user) optional.

A better way to write this regex is

(https?://)?(www.)?youtube.com/(channel|user)/[w-]+