es.array.find-last-index.js
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es.array.find-last-index.js
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	'use strict';
	var $ = require('../internals/export');
	var $findLastIndex = require('../internals/array-iteration-from-last').findLastIndex;
	var addToUnscopables = require('../internals/add-to-unscopables');

	// `Array.prototype.findLastIndex` method
	// https://github.com/tc39/proposal-array-find-from-last
	$({ target: 'Array', proto: true }, {
	findLastIndex: function findLastIndex(callbackfn /* , that = undefined */) {
	return $findLastIndex(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
	}
	});

	addToUnscopables('findLastIndex');