--- title: Promise.reject() slug: Web/JavaScript/Reference/Global_Objects/Promise/reject tags: - ECMAScript6 - Method - Promise - Referensi translation_of: Web/JavaScript/Reference/Global_Objects/Promise/reject ---
Method Promise.reject(reason)
mengembalikan objek Promise
yang ditolak dengan alasan yang diberikan.
Promise.reject(reason);
Promise
ditolak.Fungsi static Promise.reject
mengembalikan Promise
yang ditolak. Untuk keperluan debugging dan seleksi penankapan error, sangat berguna untuk membuat reason
pada instanceof
{{jsxref("Error")}}.
Promise.reject("Testing static reject").then(function(reason) { // not called }, function(reason) { console.log(reason); // "Testing static reject" }); Promise.reject(new Error("fail")).then(function(error) { // not called }, function(error) { console.log(error); // Stacktrace });
Spesifikasi | Status | Comment |
---|---|---|
{{SpecName('ES6', '#sec-promise.reject', 'Promise.reject')}} | {{Spec2('ES6')}} | Initial definition in an ECMA standard. |
{{SpecName('ESDraft', '#sec-promise.reject', 'Promise.reject')}} | {{Spec2('ESDraft')}} |
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
{{Compat("javascript.builtins.Promise.reject")}}