How to pull the file name from a url using javascript/jquery?

Question

var index = yourstring.lastIndexOf("/") + 1;
var filename = yourstring.substr(index);

Shorter way

var filename = window.location.href.substr(window.location.href.lastIndexOf("/")+1);

var filename = url.match(/.*\/(.*)$/)[1];

var filename= url.split('/').pop()