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.has description: > Returns true for existing keys, using different key types. info: | Map.prototype.has ( key ) 5. Repeat for each Record {[[key]], [[value]]} p that is an element of entries, i. If p.[[key]] is not empty and SameValueZero(p.[[key]], key) is true, return true. ... features: [Symbol] ---*/ var map = new Map(); assert.sameValue(map.has('str'), false); assert.sameValue(map.has(1), false); assert.sameValue(map.has(NaN), false); assert.sameValue(map.has(true), false); assert.sameValue(map.has(false), false); assert.sameValue(map.has({}), false); assert.sameValue(map.has([]), false); assert.sameValue(map.has(Symbol()), false); assert.sameValue(map.has(null), false); assert.sameValue(map.has(undefined), false);