-// TODO: disabled by default because of the conflict with another proposal
-'use strict';
-var $ = require('../internals/export');
-var requireObjectCoercible = require('../internals/require-object-coercible');
-var toLength = require('../internals/to-length');
-var toInteger = require('../internals/to-integer');
-var fails = require('../internals/fails');
-
-var FORCED = fails(function () {
- return '𠮷'.at(0) !== '\uD842';
-});
-
-// `String.prototype.at` method
-// https://github.com/tc39/proposal-relative-indexing-method
-$({ target: 'String', proto: true, forced: FORCED }, {
- at: function at(index) {
- var S = String(requireObjectCoercible(this));
- var len = toLength(S.length);
- var relativeIndex = toInteger(index);
- var k = relativeIndex >= 0 ? relativeIndex : len + relativeIndex;
- return (k < 0 || k >= len) ? undefined : S.charAt(k);
- }
-});
+// TODO: Remove from `core-js@4`
+require('../modules/es.string.at-alternative');