How to get a youtube playlist using javascript API and json

Question

This is part of my youtube project. I try to extract video information from JSON format but I have problem in this line:

var videoId = data.feed.entry[i].li         


        

Answer 1

I found that these lines:

var feedURL = item.link[1].href;
var fragments = feedURL.split("/");
var videoID = fragments[fragments.length - 2];

are expecting item.link[1].href to be in this format:

http://gdata.youtube.com/feeds/api/videos/NAs5it-xjnQ/responses?v=2

However, it does not necessarily work as sometimes item.link[1] gives an URL like

http://www.youtube.com/watch?v=Vcp7xz6dfWE&feature=youtube_gdata

Fragments[fragments.length - 2] will end up being "www.youtube.com" instead of the video ID.

I modified it to retrieve the link from item.content.src which always has a fixed format in the URL e.g.

http://www.youtube.com/v/NAs5it-xjnQ?version=3&f=playlists&app=youtube_gdata

So the final code snippet is something like:

var tmp = item.content.src.split("/").reverse()[0];
var videoID = tmp.substring(0, tmp.indexOf("?"));

which so far has not failed me yet.

Hope this helps those who are stuck or is having problems retrieving the video ID.

Regards
CK