0.1.2 • Published 4 years ago
ts-promisify-callback v0.1.2
ts-promisify-callback
Turns any function ending with the "popular" (Error, Result)
callback format into a Promise
. Type-safe!
Install
npm install ts-promisify-callback
Usage
IMPORTANT: This library requires typescript@^4.0
(currently in beta)!
import { promisifyCallback } from "ts-promisify-callback";
function helloWithCallback(
name: string,
age: number,
cb: (err: Error | null, result: string) => void
) {
cb(null, `I'm ${name}, age ${age}`);
}
let helloAsPromise = promisifyCallback(helloWithCallback);
// let helloAsPromise: (name: string, age: number) => Promise<string>
(async () => {
let greeting = await helloAsPromise("hello", 31);
alert(greeting);
})();
Contributing
This is a very simple library, but I'm sure there are many ways to improve it to be more flexible...
Pull Requests Welcome!