git.r.bdr.sh - rbdr/dotfiles/blob

   1 'use strict';
   2
   3 var isPlainArray = require('../../is-plain-array')
   4   , callable     = require('../../../object/valid-callable')
   5
   6   , isArray = Array.isArray, filter = Array.prototype.filter
   7   , forEach = Array.prototype.forEach, call = Function.prototype.call;
   8
   9 module.exports = function (callbackFn/*, thisArg*/) {
  10         var result, thisArg, i;
  11         if (!this || !isArray(this) || isPlainArray(this)) {
  12                 return filter.apply(this, arguments);
  13         }
  14         callable(callbackFn);
  15         thisArg = arguments[1];
  16         result = new this.constructor();
  17         i = 0;
  18         forEach.call(this, function (val, j, self) {
  19                 if (call.call(callbackFn, thisArg, val, j, self)) result[i++] = val;
  20         });
  21         return result;
  22 };