Async functions

Async functions make it possible to treat functions returning Promise objects as if they were synchronous.

Promise.prototype.finally

When the promise is settled, whether fulfilled or rejected, the specified callback function is executed.

Promises

A promise represents the eventual result of an asynchronous operation.

unhandledrejection/rejectionhandled events

The `unhandledrejection` event is fired when a Promise is rejected but there is no rejection handler to deal with the rejection. The `rejectionhandled` event is fired when a Promise is rejected, and after the rejection is handled by the promise's rejection handling code.

baseaudiocontext api: decodeaudiodata: returns a `promise`

document api: exitfullscreen: returns a `promise`

element api: requestfullscreen: returns a `promise`

element api: scrollby: returns a `promise`

element api: scrollintoview: returns a `promise`

element api: scrollto: returns a `promise`

element api: scroll: returns a `promise`

htmlmediaelement api: play: returns a `promise`

notification api: `requestpermission()` static method: returns a `promise`

offlineaudiocontext api: startrendering: returns a `promise`

promiserejectionevent api

promiserejectionevent api: promise

promiserejectionevent api: `promiserejectionevent()` constructor

promiserejectionevent api: reason

rtcpeerconnection api: addicecandidate: returns a `promise`

rtcpeerconnection api: createanswer: returns a `promise`

rtcpeerconnection api: createoffer: returns a `promise`

rtcpeerconnection api: getstats: returns a `promise`

rtcpeerconnection api: `setlocaldescription()`: returns a `promise`

rtcpeerconnection api: `setremotedescription()`: returns a `promise`

window api: scrollby: returns a `promise`

window api: scrollto: returns a `promise`

window api: scroll: returns a `promise`

javascript built-in: promise: [symbol.species]

javascript built-in: promise: `all()`

javascript built-in: promise: allkeyed

javascript built-in: promise: `allsettled()`

javascript built-in: promise: allsettledkeyed

javascript built-in: promise: any

javascript built-in: promise: `catch()`

javascript built-in: promise: `finally()`

javascript built-in: promise: incumbent settings object tracking

javascript built-in: promise: `promise()` constructor

javascript built-in: promise: `race()`

javascript built-in: promise: `reject()`

javascript built-in: promise: `resolve()`

javascript built-in: promise: `then()`

javascript built-in: promise: try

javascript built-in: promise: withresolvers

javascript-promise integration