Strict mode Passingnon-Strict mode Passing
Features:
- ∅
// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-setintegritylevel description: Object.seal - 'O' is a Date object ---*/ var dateObj = new Date(0); var preCheck = Object.isExtensible(dateObj); Object.seal(dateObj); assert(preCheck, 'preCheck !== true'); assert(Object.isSealed(dateObj), 'Object.isSealed(dateObj) !== true');