Simple script to get the videos that are part of a playlist on youtube

youtube.js

var playlistID = 'PLmKbqjSZR8TaNjzkuwaFOqjQibUnS2w6u';

var youtubeKEY = '{YOUR-API-KEY-HERE}';

var playlistJSON;

// This needs to be revised/updated to remove the error for a depreciation
function playListGet(theUrl)
{
    var xmlHttp = new XMLHttpRequest();
    xmlHttp.open( "GET", theUrl, false );
    xmlHttp.send(  );
    return xmlHttp.responseText;
}

function playListRetrevial() 
{
	return playListGet('https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=10&playlistId='+playlistID+"&key="+youtubeKEY);
}

playlistJSON = JSON.parse(playListRetrevial());
var items = playlistJSON.items;
console.log(itemsArray);

window.onload = function() {

	for (var i in items) {
		var currentVid = items[i].snippet.resourceId.videoId;
		console.log(currentVid);
		// document.getElementById('video_container').innerHTML += '<li><iframe src="https://www.youtube.com/embed/'+currentVid+'?list='+playlistID+'" frameborder="0" allowfullscreen></iframe></li>'
	}
}