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node_modules/core-js/modules/es.array.map.js

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+'use strict';
+var $ = require('../internals/export');
+var $map = require('../internals/array-iteration').map;
+var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');
+
+var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');
+
+// `Array.prototype.map` method
+// https://tc39.es/ecma262/#sec-array.prototype.map
+// with adding support of @@species
+$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
+  map: function map(callbackfn /* , thisArg */) {
+    return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
+  }
+});