| 'use strict'; |
| var $ = require('../internals/export'); |
| var $reduceRight = require('../internals/array-reduce').right; |
| var arrayMethodIsStrict = require('../internals/array-method-is-strict'); |
| var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length'); |
| |
| var STRICT_METHOD = arrayMethodIsStrict('reduceRight'); |
| // For preventing possible almost infinite loop in non-standard implementations, test the forward version of the method |
| var USES_TO_LENGTH = arrayMethodUsesToLength('reduce', { 1: 0 }); |
| |
| // `Array.prototype.reduceRight` method |
| // https://tc39.github.io/ecma262/#sec-array.prototype.reduceright |
| $({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH }, { |
| reduceRight: function reduceRight(callbackfn /* , initialValue */) { |
| return $reduceRight(this, callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined); |
| } |
| }); |