Help with regex expression ?

[Tony K]

Hello

I am trying to do a regex that would extract the youtube video ID from a URL

i found this https://stackoverflow.com/questions/3452546/how-do-i-get-the-youtube-video-id-from-a-url and the regex seems to be 

/^.*((youtu.be\/)|(v\/)|(\/u\/\w\/)|(embed\/)|(watch\?))\??v?=?([^#&?]*).*/

however it is not working in Tiddly 

{{{ [[https://www.youtube.com/watch?v=OcLbZFS4Ge8&t=68s]splitregexp[/^.*((youtube.com/]] }}}

anyone can assist?

thank you 

[Mohammad]

This is a booklet on using Regexp in Tiddlywiki

http://tw-regexp.tiddlyspot.com/

[Tony K]

Thanks Mohammad

but I still don't get why the regex i found doesn't work :( 

is it a non-standard format/?

[Mark S.]

There was an error in your expression. It might help to explain what it is you want to do. This will work, but I don't know if it is what you want:

{{{ [[https://www.youtube.com/watch?v=OcLbZFS4Ge8&t=68s]splitregexp[/.*(youtube.com/)]] }}}