feat:node-modules

node_modules/core-js/modules/esnext.map.get-or-insert-computed.js

@@ -0,0 +1,24 @@
+'use strict';
+var $ = require('../internals/export');
+var aCallable = require('../internals/a-callable');
+var aMap = require('../internals/a-map');
+var MapHelpers = require('../internals/map-helpers');
+
+var get = MapHelpers.get;
+var has = MapHelpers.has;
+var set = MapHelpers.set;
+
+// `Map.prototype.getOrInsertComputed` method
+// https://github.com/tc39/proposal-upsert
+$({ target: 'Map', proto: true, real: true, forced: true }, {
+  getOrInsertComputed: function getOrInsertComputed(key, callbackfn) {
+    aMap(this);
+    aCallable(callbackfn);
+    if (has(this, key)) return get(this, key);
+    // CanonicalizeKeyedCollectionKey
+    if (key === 0 && 1 / key === -Infinity) key = 0;
+    var value = callbackfn(key);
+    set(this, key, value);
+    return value;
+  }
+});