git.r.bdr.sh - rbdr/dotfiles/blob - atom/packages/vim-mode/node_modules/grim/node_modules/emissary/node_modules/es6-weak-map/node_modules/es5-ext/array/#/map/shim.js

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