get youtube video id from url javascript
// true when ID is found, false otherwise.
//Extracts youtube ID
<script type="text/javascript">
function youtube_parser(url){
var regExp = /^https?://(?:www.youtube(?:-nocookie)?.com/|m.youtube.com/|youtube.com/)?(?:ytscreeningroom?vi?=|youtu.be/|vi?/|user/.+/u/w{1,2}/|embed/|watch?(?:.*&)?vi?=|&vi?=|?(?:.*&)?vi?=)([^#&?n/<>"']*)/i;
var match = url.match(regExp);
return (match && match[1].length==11)? match[1] : false;
}
</script>