code: function(search) {
        // Force compiler to respect argument length.
        var argLen = arguments.length, fromIndex = arguments[1];
        var arr = this, len;
        if (isString(arr)) {
          return arr.includes(search, fromIndex);
        }
        fromIndex = fromIndex ? fromIndex.valueOf() : 0;
        len = arr.length;
        if (fromIndex < 0) {
          fromIndex = max(0, fromIndex + len);
        }
        for (var i = fromIndex; i < len; i++) {
          if (sameValueZero(search, arr[i])) {
            return true;
          }
        }
        return false;
      }
docs: *
  @method includes(search, [fromIndex] = 0)
  @returns Boolean
  @polyfill ES7
  @short Returns true if `search` is contained within the array.
  @extra Search begins at [fromIndex], which defaults to the beginning of the
  array.
  
  @example
  
  [1,2,3].includes(2)    -> true
  [1,2,3].includes(4)    -> false
  [1,2,3].includes(2, 3) -> false
  
  *