Strict mode Passingnon-Strict mode Passing
Features:
- Array.prototype.flat
// Copyright (C) 2018 Shilpi Jain and Michael Ficarra. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-array.prototype.flat description: Property type and descriptor. info: > 17 ECMAScript Standard Built-in Objects includes: [propertyHelper.js] features: [Array.prototype.flat] ---*/ assert.sameValue( typeof Array.prototype.flat, 'function', '`typeof Array.prototype.flat` is `function`' ); verifyProperty(Array.prototype, 'flat', { enumerable: false, writable: true, configurable: true, });