Full calendar get all events as JSON string for ajax

fullCalendar_events_to_JSON.js

var allVideosInGrid = function(){return calenderID.fullCalendar('clientEvents') };
console.log(allVideosInGrid());//[Object, Object, Object, Object, Object, Object] => JSONstring
  	var vidOBJ=allVideosInGrid();
		var json = JSON.stringify(vidOBJ.map(function(e) {
		    return {
		       videoId:e.videoId,
		        title: e.title,
		        start: e.start,
		        end: e.end,
		        videoLength:e.videoLength
		    };
		}));
		console.log(json); /* 
		[{"videoId":"127","title":"Video 4","start":"2016-01-04T09:00:00","end":"2016-01-04T10:00:00","videoLength":"150"},{"videoId":"127","title":"Video 4","start":"2016-01-07T09:00:00","end":"2016-01-07T10:00:00","videoLength":"150"},{"videoId":"127","title":"Video 4","start":"2016-01-11T09:00:00.000Z","end":"2016-01-11T10:00:00.000Z","videoLength":"150"},{"videoId":"127","title":"Video 4","start":"2016-01-18T09:00:00.000Z","end":"2016-01-18T10:00:00.000Z","videoLength":"150"},{"videoId":"127","title":"Video 4","start":"2016-01-14T09:00:00.000Z","end":"2016-01-14T10:00:00.000Z","videoLength":"150"},{"videoId":"127","title":"Video 4","start":"2016-01-21T09:00:00.000Z","end":"2016-01-21T10:00:00.000Z","videoLength":"150"}]
		*/