Extract video ID from its URL (e.g. using regex) code example

Example 1: 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>

Example 2: get youtube id from url

<script type="text/javascript">
function youtube_parser(url){
    var regExp = /^.*((youtu.be\/)|(v\/)|(\/u\/\w\/)|(embed\/)|(watch\?))\??v?=?([^#&?]*).*/;
    var match = url.match(regExp);
    return (match&&match[7].length==11)? match[7] : false;
}
</script>

These are the types of URLs supported

http://www.youtube.com/watch?v=0zM3nApSvMg&feature=feedrec_grec_index
http://www.youtube.com/user/IngridMichaelsonVEVO#p/a/u/1/QdK8U-VIH_o
http://www.youtube.com/v/0zM3nApSvMg?fs=1&amp;hl=en_US&amp;rel=0
http://www.youtube.com/watch?v=0zM3nApSvMg#t=0m10s
http://www.youtube.com/embed/0zM3nApSvMg?rel=0
http://www.youtube.com/watch?v=0zM3nApSvMg
http://youtu.be/0zM3nApSvMg