A example method for preloading html5 videos in a queue

gistfile1.js

// Have to use an object so that count can function as a reference
var loadQueue = {
  count:0
}

/**
 * Preloads videos
 * 
 * If limit has been reached video is not preloaded but an
 * interval is set that checks to see if the queue count
 * is below the limit. For this to work a 'canplaythrough'
 * event needs to deprecate the loadQueue.count when it is
 * fired.
 * /
var preload = function(players) {
      var limit;

      // Max videos that can preload at once.
      limit = 2;

      function callback(video, queue, interval) {
          // console.log('interval callback, queue:', queue, interval);
          
          if (queue.count < limit) {                
              console.log('queueing: ', video);
              queue.count++;
              player.preload = true;
              clearInterval(interval);
          }
      }

      players.map(function(player) {
          var interval = setInterval(function() {  
              callback(video, loadQueue, interval);
          }.bind(this), 1000);
      }.bind(this));

  };