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-map.prototype.forEach description: > If a thisArg parameter is provided, it will be used as the this value for each invocation of callbackfn. info: | Map.prototype.forEach ( callbackfn [ , thisArg ] ) ... 5. If thisArg was supplied, let T be thisArg; else let T be undefined. 6. Let entries be the List that is the value of M’s [[MapData]] internal slot. 7. Repeat for each Record {[[key]], [[value]]} e that is an element of entries, in original key insertion order a. If e.[[key]] is not empty, then i. Let funcResult be Call(callbackfn, T, «e.[[value]], e.[[key]], M»). ... ---*/ var expectedThis = {}; var _this = []; var map = new Map(); map.set(0, 0); map.set(1, 1); map.set(2, 2); var callback = function() { _this.push(this); }; map.forEach(callback, expectedThis); assert.sameValue(_this[0], expectedThis); assert.sameValue(_this[1], expectedThis); assert.sameValue(_this[2], expectedThis);