// Copyright (C) 2021 Chengzhong Wu. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description: Error constructor creates own cause property info: | Error ( message [ , options ] ) ... 4. Perform ? InstallErrorCause(O, options). ... 20.5.8.1 InstallErrorCause ( O, options ) 1. If Type(options) is Object and ? HasProperty(options, "cause") is true, then a. Let cause be ? Get(options, "cause"). b. Perform ! CreateNonEnumerableDataPropertyOrThrow(O, "cause", cause). ... esid: sec-error-message features: [error-cause] includes: [propertyHelper.js] ---*/ var message = "my-message"; var cause = { message: "my-cause" }; var error = new Error(message, { cause }); verifyProperty(error, "cause", { configurable: true, enumerable: false, writeable: true, value: cause, }); verifyProperty(new Error(message), "cause", undefined); verifyProperty(new Error(message, { cause: undefined }), "cause", { value: undefined });