// Copyright (C) 2015 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es6id: 23.1.1.1 description: > The new Map object's prototype is Map.prototype info: | Map ( [ iterable ] ) When the Map function is called with optional argument the following steps are taken: ... 2. Let map be OrdinaryCreateFromConstructor(NewTarget, "%MapPrototype%", «‍[[MapData]]» ). ... ---*/ var m1 = new Map(); assert.sameValue( Object.getPrototypeOf(m1), Map.prototype, "`Object.getPrototypeOf(m1)` returns `Map.prototype`" ); var m2 = new Map([ [1, 1], [2, 2] ]); assert.sameValue( Object.getPrototypeOf(m2), Map.prototype, "`Object.getPrototypeOf(m2)` returns `Map.prototype`" );