Strict mode Passingnon-Strict mode Passing
Features:
- ∅
// 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.add description: Returns `this` after adding a new value. info: | WeakSet.prototype.add ( value ) 1. Let S be this value. ... 8. Return S. ---*/ var s = new WeakSet(); assert.sameValue(s.add({}), s, '`s.add({})` returns `s`');