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rOACCT/node_modules/core-js/modules/esnext.array.last-index.js
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esnext.array.last-index.js
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			'use strict';
			// TODO: Remove from `core-js@4`
			var DESCRIPTORS = require('../internals/descriptors');
			var addToUnscopables = require('../internals/add-to-unscopables');
			var toObject = require('../internals/to-object');
			var lengthOfArrayLike = require('../internals/length-of-array-like');
			var defineBuiltInAccessor = require('../internals/define-built-in-accessor');

			// `Array.prototype.lastIndex` getter
			// https://github.com/keithamus/proposal-array-last
			if (DESCRIPTORS) {
			defineBuiltInAccessor(Array.prototype, 'lastIndex', {
			configurable: true,
			get: function lastIndex() {
			var O = toObject(this);
			var len = lengthOfArrayLike(O);
			return len == 0 ? 0 : len - 1;
			}
			});

			addToUnscopables('lastIndex');
			}