https://stackoverflow.com › questions › 27759593
javascript - How do I wait for a promise to finish before returning the ...Use async/await (NOT Part of ECMA6, but available for Chrome, Edge, Firefox and Safari since end of 2017, see canIuse) MDN. async function waitForPromise() {. // let result = await any Promise, like: let result = await Promise.resolve('this is a sample promise'); }
Another option is to use Promise.all to wait for an array of promises to resolve and then act on those.
https://stackoverflow.com › questions › 28921127
asynchronous - How to wait for a JavaScript Promise to resolve before ...Another option is to use Promise.all to wait for an array of promises to resolve and then act on those.
https://bobbyhadz.com › blog › javascript-wait-promise-resolve-before-returning
Wait for a Promise to Resolve before Returning in JSYou can use the async/await syntax or call the .then() method on a promise to wait for it to resolve. Inside functions marked with the async keyword, you can use await to wait for the promises to resolve before continuing to the next line of the function. index.js.
https://developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Operators › await
await - JavaScript | MDN - MDN Web DocsThe await operator is used to wait for a Promise and get its fulfillment value. It can only be used inside an async function or at the top level of a module.
https://developer.mozilla.org › en-US › docs › Web › JavaScript › Guide › Using_promises
Using promises - JavaScript | MDN - MDN Web Docsconst wait = (ms) => new Promise((resolve) => setTimeout(resolve, ms)); wait(10 * 1000) .then(() => saySomething("10 seconds")) .catch(failureCallback); The promise constructor takes an executor function that lets us resolve or reject a promise manually.
https://javascript.info › async-await
Async/await - The Modern JavaScript TutorialThe keyword await makes JavaScript wait until that promise settles and returns its result. Here’s an example with a promise that resolves in 1 second: async function f() { let promise = new Promise((resolve, reject) => { setTimeout(() => resolve("done!"), 1000) }); let result = await promise; // wait until the promise resolves ...
https://www.freecodecamp.org › news › javascript-promises-async-await-and-promise-methods
How to Use JavaScript Promises – Callbacks, Async/Await, and Promise ...So when we use the Promise.race method, it will wait until the first promise gets resolved or rejected and then: If the first promise in the promise chain gets resolved, the .then handler will be executed and the result will be the result of the first resolved promise.
https://www.freecodecamp.org › news › async-await-javascript-tutorial
Async Await JavaScript Tutorial – How to Wait for a Function to Finish ...Async Await JavaScript Tutorial – How to Wait for a Function to Finish in JS. By Fredrik Strand Oseberg. When does an asynchronous function finish? And why is this such a hard question to answer? Well it turns out that understanding asynchronous functions requires a great deal of knowledge about how JavaScript works fundamentally.
https://www.delftstack.com › howto › javascript › javascript-wait-for-promise-to-resolve
How to Wait for Promises to Get Resolved in JavaScriptPromise takes two arguments, resolve and reject. The resolve() method returns a promise object that is resolved with a value. If there is an error while executing a promise, the reject method will return an error. Promises use async and await keywords.
https://www.golinuxcloud.com › javascript-wait-for-async-to-finish
Wait for async function to finish in JavaScript [SOLVED] - GoLinuxCloudIn this article, we'll take a look at how to use Promises and async/await to wait for async function to finish. We'll also look at how to use setTimeout() to delay our code until the async function has been completed.
