code: function(start, end) {
        var i, len;
        if(isUndefined(start)) return this;
        if(isUndefined(end)) end = start;
        for(i = 0, len = end - start; i <= len; i++) {
          this.splice(start, 1);
        }
        return this;
      }
docs: *
  @method removeAt(<start>, [end])
  @returns Array
  @short Removes element at <start>. If [end] is specified, removes the range between <start> and [end]. This method will change the array! If you don't intend the array to be changed use %clone% first.
  @example
  
  ['a','b','c'].removeAt(0) -> ['b','c']
  [1,2,3,4].removeAt(1, 3)  -> [1]
  
  *