Learn how to use async functions to write asynchronous, promise-based code in a cleaner style with await expressions. See syntax, description, examples, and browser compatibility of async functions.
Une fonction asynchrone est une fonction précédée par le mot-clé async, et qui peut contenir le mot-clé await. async et await permettent un comportement asynchrone, basé sur une promesse (Promise), écrite de façon simple, et évitant de configurer explicitement les chaînes de promesse.
https://www.w3schools.com › Js › js_async.asp
JavaScript Async - W3SchoolsLearn how to use async and await keywords to make promises easier to write and handle in JavaScript. See examples of async functions, await syntax, and browser support.
https://javascript.info › async-await
Async/await - The Modern JavaScript TutorialLearn how to use async and await keywords to work with promises in a more comfortable fashion. See examples of async functions, error handling, top-level await and thenables.
Le mot-clé async function peut être utilisé pour définir une fonction asynchrone au sein d'une expression. Note : Il est aussi possible de définir une fonction asynchrone en utilisant une instruction async function.
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Async/await - JavaScriptLe mot-clé await fait en sorte que JavaScript attende que cette promesse se réalise et renvoie son résultat. Voici un exemple avec une promesse qui se résout en 1 seconde: async function f() { let promise = new Promise((resolve, reject) => { setTimeout(() => resolve("done!"), 1000) }); let result = await promise; alert(result); // "done!"
https://javascript.info › async
Promises, async/await - The Modern JavaScript TutorialPromises, async/await. Introduction: callbacks. Promise. Promises chaining. Error handling with promises. Promise API. Promisification. Microtasks. Async/await.
https://www.javascripttutorial.net › javascript-async-await
JavaScript Async / Await: Asynchronous JavaScript - JavaScript TutorialLearn how to use the async/await keywords to write asynchronous code that looks more like synchronous code and is more readable. See how to handle promises, errors, and multiple asynchronous operations with async/await.
https://www.w3schools.com › js › js_asynchronous.asp
Asynchronous JavaScript - W3SchoolsLearn how to use asynchronous functions in JavaScript, such as setTimeout() and setInterval(), with callbacks. Also, see how to use Promises as an alternative to callbacks for asynchronous programming.
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How to Use Async/Await in JavaScript with Example JS CodeIn this tutorial, we are going to learn how to use Async/Await in JavaScript. But before we get there, we should understand a few topics like: Event loops. Callbacks. Promises. What are Event Loops in JavaScript? Event loops are one of the most important aspects of JavaScript.
