js function to get filename from url

Question

I have a url like http://www.example.com/blah/th.html

I need a javascript function to give me the \'th\' value from that.

All my urls have the same format (2

Answer 1

those will not work for lenghty url like
"/my/folder/questions.html#dssddsdsd?toto=33&dududu=podpodpo"

here I expect to get "questions.html". So a possible (slow) solution is as below

fname=function(url) 
{ return url?url.split('/').pop().split('#').shift().split('?').shift():null }

then you can test that in any case you get only the filename.

fname("/my/folder/questions.html#dssddsdsd?toto=33&dududu=podpodpo")
-->"questions.html"
fname("/my/folder/questions.html#dssddsdsd")
-->"questions.html"
fname("/my/folder/questions.html?toto=33&dududu=podpodpo")
"-->questions.html"

(and it works for null)

(I would love to see a faster or smarter solution)