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rOACCT/node_modules/core-js/internals/array-copy-within.js
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array-copy-within.js
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			'use strict';
			var toObject = require('../internals/to-object');
			var toAbsoluteIndex = require('../internals/to-absolute-index');
			var lengthOfArrayLike = require('../internals/length-of-array-like');
			var deletePropertyOrThrow = require('../internals/delete-property-or-throw');

			var min = Math.min;

			// `Array.prototype.copyWithin` method implementation
			// https://tc39.es/ecma262/#sec-array.prototype.copywithin
			// eslint-disable-next-line es/no-array-prototype-copywithin -- safe
			module.exports = [].copyWithin \|\| function copyWithin(target /* = 0 /, start / = 0, end = @length */) {
			var O = toObject(this);
			var len = lengthOfArrayLike(O);
			var to = toAbsoluteIndex(target, len);
			var from = toAbsoluteIndex(start, len);
			var end = arguments.length > 2 ? arguments[2] : undefined;
			var count = min((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);
			var inc = 1;
			if (from < to && to < from + count) {
			inc = -1;
			from += count - 1;
			to += count - 1;
			}
			while (count-- > 0) {
			if (from in O) O[to] = O[from];
			else deletePropertyOrThrow(O, to);
			to += inc;
			from += inc;
			} return O;
			};