text: define(['./slice'], function (slice) {
  
      /**
       * Call `methodName` on each item of the array passing custom arguments if
       * needed.
       */
      function invoke(arr, methodName, var_args) {
          if (arr == null) {
              return arr;
          }
  
          var args = slice(arguments, 2);
          var i = -1, len = arr.length, value;
          while (++i < len) {
              value = arr[i];
              value[methodName].apply(value, args);
          }
  
          return arr;
      }
  
      return invoke;
  });
  