Strict mode Passingnon-Strict mode Passing
Features:
- Symbol
// 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.clear description: > Clears a Map. info: | Map.prototype.clear ( ) ... 4. Let entries be the List that is the value of M’s [[MapData]] internal slot. 5. Repeat for each Record {[[key]], [[value]]} p that is an element of entries, a. Set p.[[key]] to empty. b. Set p.[[value]] to empty. 6. Return undefined. features: [Symbol] ---*/ var m1 = new Map([ ['foo', 'bar'], [1, 1] ]); var m2 = new Map(); var m3 = new Map(); m2.set('foo', 'bar'); m2.set(1, 1); m2.set(Symbol('a'), Symbol('a')); m1.clear(); m2.clear(); m3.clear(); assert.sameValue(m1.size, 0); assert.sameValue(m2.size, 0); assert.sameValue(m3.size, 0);