code: function getYTVideoID(url) {
        var regexp = /(?:youtube\.com\/(?:[^\/]+\/.+\/|(?:v|e(?:mbed)?)\/|.*[?&]v=)|youtu\.be\/)([^"&?\/ ]{11})/i;
        var match = url.match(regexp);
        return match && match.length === 2 ? match[1] : false;
      }
docs: @func getYTVideoID
  @private
  
  @param {string} url
  @returns {String|Boolean}