code: function invoke(array, method) {
      var args = slice.call(arguments, 2), result = [ ];
      for (var i = 0, len = array.length; i < len; i++) {
        result[i] = args.length ? array[i][method].apply(array[i], args) : array[i][method].call(array[i]);
      }
      return result;
    }
docs: Invokes method on all items in a given array
  @method invoke
  @memberOf fabric.util.array
  @param {Array} array Array to iterate over
  @param {String} method Name of a method to invoke