code: function(destination){
              var sources = Array.prototype.slice.call(arguments, 1);
              for (var i = 0; i < sources.length; i++) {
                  var source = sources[i];
                  for(var key in source){
                      destination[key] = source[key];
                  }
              }
              return destination;
          }
docs: Copy all of the properties in the source objects over to the destination object, and return the destination object.
  It's in-order, so the last source will override properties of the same name in previous arguments.
  @method merge
  @static
  @param {Object} destination - The object to copy properties to.
  @param {Object} source* - The object to copy properties from.
  @return {Object} The `destination` object.