The Promise.reject() static method returns a Promise object that is rejected with a given reason.
La fonction statique Promise.reject renvoie une Promise qui est rejetée. Pour faciliter le débogage (comprendre plus rapidement le problème et sélectionner une erreur précise), il peut être utile que l'argument raison soit une instance d'Error.
https://stackoverflow.com › questions › 33445415
JavaScript Promises - reject vs. throw - Stack OverflowUsing Promise.reject. return asyncIsPermitted() .then(function(result) { if (result === true) { return true; } else { return Promise.reject(new PermissionDenied()); } }); Using throw. return asyncIsPermitted() .then(function(result) { if (result === true) { return true; } else { throw new PermissionDenied(); } });
Vidéos
The Promise class offers four static methods to facilitate async task concurrency: Promise.all() Fulfills when all of the promises fulfill; rejects when any of the promises rejects. Promise.allSettled() Fulfills when all promises settle. Promise.any() Fulfills when any of the promises fulfills; rejects when all of the promises reject. Promise ...
https://www.w3schools.com › jsref › jsref_promise_reject.asp
JavaScript Promise.reject() Method - W3SchoolsDescription. The Promise.reject() method returns a Promise object rejected with a value. Syntax. Promise.reject (message) Parameters. Return Value. Promise Tutorial. catch () finally () then () Browser Support. Promise.Reject() is an ECMAScript6 (ES6) feature. ES6 (JavaScript 2015) is supported in all modern browsers since June 2017:
https://www.freecodecamp.org › news › javascript-promise-tutorial-how-to-resolve-or-reject...
JavaScript Promise Tutorial – How to Resolve or Reject Promises in JSThe Promise.resolve/reject methods. Promise.resolve(value) – It resolves a promise with the value passed to it. It is the same as the following: let promise = new Promise (resolve => resolve(value)); Promise.reject(error) – It rejects a promise with the error passed to it. It is the same as the following:
https://javascript.info › promise-api
Promise API - The Modern JavaScript TutorialIf any of the promises is rejected, the promise returned by Promise.all immediately rejects with that error. For instance:
The static Promise.reject function returns a Promise that is rejected. For debugging purposes and selective error catching, it is useful to make reason an instanceof Error . Examples
https://stackoverflow.com › questions › 43406978
javascript - Handling Js promise rejection - Stack Overflowvar p123 = new Promise(function(resolve, reject) { resolve(123) }); return p123 }; Promise.resolve() .then(testError) .catch(err => { console.error(err); return err; }) .then(ok => { console.log(ok.message) });
https://www.typeerror.org › docs › javascript › global_objects › promise › reject
Promise.reject - JavaScript Documentation - TypeErrorThe static Promise.reject function returns a Promise that is rejected. For debugging purposes and selective error catching, it is useful to make reason an instanceof Error. Examples Using the static Promise.reject() method
