How do I get the YouTube video ID from a URL?

Question

I want to get the v=id from YouTube’s URL with JavaScript (no jQuery, pure JavaScript).

Example YouTube URL formats

http://www.youtube.c

Answer 1

Java Code: (Works for all the URLs:

1. http://www.youtube.com/watch?v=0zM3nApSvMg&feature=feedrec_grec_index
2. http://www.youtube.com/user/IngridMichaelsonVEVO#p/a/u/1/QdK8U-VIH_o
3. http://youtube.googleapis.com/v/0zM3nApSvMg?fs=1&hl=en_US&rel=0
4. http://www.youtube.com/watch?v=0zM3nApSvMg#t=0m10s
5. http://www.youtube.com/embed/0zM3nApSvMg?rel=0"
6. http://www.youtube.com/watch?v=0zM3nApSvMg
7. http://youtu.be/0zM3nApSvMg
8. http://www.youtube.com/watch?v=0zM3nApSvMg/
9. http://www.youtube.com/watch?feature=player_detailpage&v=8UVNT4wvIGY

)

    String url = "http://www.youtube.com/watch?v=0zM3nApSvMg&feature=feedrec_grec_index";

    String regExp = "/.*(?:youtu.be\\/|v\\/|u/\\w/|embed\\/|watch\\?.*&?v=)";
    Pattern compiledPattern = Pattern.compile(regExp);
    Matcher matcher = compiledPattern.matcher(url);
    if(matcher.find()){
        int start = matcher.end();
        System.out.println("ID : " + url.substring(start, start+11));

    }

For DailyMotion:

String url = "http://www.dailymotion.com/video/x4xvnz_the-funny-crash-compilation_fun";

    String regExp = "/video/([^_]+)/?";
    Pattern compiledPattern = Pattern.compile(regExp);
    Matcher matcher = compiledPattern.matcher(url);
    if(matcher.find()){
        String match = matcher.group();
        System.out.println("ID : " + match.substring(match.lastIndexOf("/")+1));

    }