code: function (index, count) {
          validateListIndex(this, index + count - 1);
  
          var len = this.length - count;
  
          for (; index < len; index++) {
              this[index] = this[index + count];
          }
  
          shrinkList(this, len);
      }
docs: Removes a range of elements from the List.
  @param {Number} index The zero-based index of the element to remove.
  @param {Number} count The number of elements to remove.