code: function _slice(args, from, to) {
          switch (arguments.length) {
          case 1:
              return _slice(args, 0, args.length);
          case 2:
              return _slice(args, from, args.length);
          default:
              var list = [];
              var idx = 0;
              var len = Math.max(0, Math.min(args.length, to) - from);
              while (idx < len) {
                  list[idx] = args[from + idx];
                  idx += 1;
              }
              return list;
          }
      }
docs: An optimized, private array `slice` implementation.
  
  @private
  @param {Arguments|Array} args The array or arguments object to consider.
  @param {Number} [from=0] The array index to slice from, inclusive.
  @param {Number} [to=args.length] The array index to slice to, exclusive.
  @return {Array} A new, sliced array.
  @example
  
  _slice([1, 2, 3, 4, 5], 1, 3); //=> [2, 3]
  
  var firstThreeArgs = function(a, b, c, d) {
  return _slice(arguments, 0, 3);
  };
  firstThreeArgs(1, 2, 3, 4); //=> [1, 2, 3]