Strict mode Passingnon-Strict mode Passing
Features:
- WeakSet
// 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-weakset.prototype.has description: > Returns true when an Object value is present in the WeakSet entries list. info: | WeakSet.prototype.has ( _value_ ) 5. For each element _e_ of _entries_, do a. If _e_ is not ~empty~ and SameValue(_e_, _value_) is *true*, return *true*. features: [WeakSet] ---*/ var foo = {}; var s = new WeakSet(); s.add(foo); assert.sameValue(s.has(foo), true);