JSFiddle - React, Tailwind, and code Playground

by Slico

JavaScript

var pattern = new RegExp(
    '^(https?://)?(www.)?youtube.com/(user/)?([a-z-_0-9]+)/?([?#]?.*)',
    'i',
  );
  
  var url = "https://www.youtube.com/watch?v=zzE-kVadtNw&ab_channel=AVROTROSKlassiek"
  var matches = url.match(pattern);
  
  if (matches) {
    alert(matches[4])
  }