docs: function onYouTubePlayerAPIReady() {
    // Loop through each iframe video on the page
    jQuery( "iframe.copy-video__video").each(function (index) {
  
      // Create IDs dynamically
      var iframeID = "js-copy-video-" + index;
      var buttonID = "js-copy-video-" + index + "__button";
  
      // Set IDs
      jQuery(this).attr('id', iframeID);
      jQuery(this).next('button.copy-video__button').attr('id', buttonID);
  
      // Associate video player with button via index
      players[buttonID] = { player: null, }
  
      // Set-up a player object for each video
      players[buttonID].player =  new YT.Player(iframeID, {
        events: { 'onReady': onPlayerReady }
      });
    });
  }