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23 lines
1.2 KiB
23 lines
1.2 KiB
4 years ago
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'use strict';
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var $ = require('../internals/export');
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var $reduceRight = require('../internals/array-reduce').right;
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var arrayMethodIsStrict = require('../internals/array-method-is-strict');
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var arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');
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var CHROME_VERSION = require('../internals/engine-v8-version');
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var IS_NODE = require('../internals/engine-is-node');
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var STRICT_METHOD = arrayMethodIsStrict('reduceRight');
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// For preventing possible almost infinite loop in non-standard implementations, test the forward version of the method
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var USES_TO_LENGTH = arrayMethodUsesToLength('reduce', { 1: 0 });
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// Chrome 80-82 has a critical bug
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// https://bugs.chromium.org/p/chromium/issues/detail?id=1049982
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var CHROME_BUG = !IS_NODE && CHROME_VERSION > 79 && CHROME_VERSION < 83;
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// `Array.prototype.reduceRight` method
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// https://tc39.github.io/ecma262/#sec-array.prototype.reduceright
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$({ target: 'Array', proto: true, forced: !STRICT_METHOD || !USES_TO_LENGTH || CHROME_BUG }, {
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reduceRight: function reduceRight(callbackfn /* , initialValue */) {
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return $reduceRight(this, callbackfn, arguments.length, arguments.length > 1 ? arguments[1] : undefined);
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}
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});
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