// Copyright (C) 2015 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-map.prototype.keys description: > Returns an iterator on an empty Map object. info: | Map.prototype.keys () ... 2. Return CreateMapIterator(M, "key"). 23.1.5.1 CreateMapIterator Abstract Operation ... 7. Return iterator. ---*/ var map = new Map(); var iterator = map.keys(); var result = iterator.next(); assert.sameValue( result.value, undefined, 'The value of `result.value` is `undefined`' ); assert.sameValue(result.done, true, 'The value of `result.done` is `true`'); reportCompare(0, 0);