callforth

Callforth :running:

A tiny utility library to replace callbacks with Promises where possible. Don't callback, callforth!

It basically includes two functions I see myself re-implementing in nearly every project. So I might as well put them in a package.

Do things like:

await timeout(3000);

await eventOn(videoElement, "loadeddata");

let message = await eventOn(webWorker, "message");

Install :package:

npm install callforth

Now you can:

import { eventOn, timeout } from "callforth"

API

eventOn

let payload = await eventOn(target, successEvent, errorEvent)

Parameters

• target: anything you can call addEventListener on.
• successEvent: name of the event you want to await.
• errorEvent (optional): if this event fires, the promise is rejected.

Return Value

• payload: what would usually be the first argument of the callback.

timeout

await timeout(delay)

Parameters

• delay: delay in milliseconds after which the Promise should resolves.

Return Value

• undefined