generators-async-utils

Foreach async using generators.

One limitation of the Promise.all API arises when attempting to serialize an array of promises, especially when each promise has varying delays.

API

import { foreachAsync } from "..."

foreachAsync (arr: Promise<T>[], callback: (value: T, index: number) => void) : void

Example with callback interface

    foreachAsync([
    
        () => new Promise(resolve => setTimeout(() => resolve(3), 1000)),
        () => new Promise(resolve => setTimeout(() => resolve(4), 2000)),
        () => new Promise(resolve => setTimeout(() => resolve(5), 3000))
    
    ], (value, i) => console.log(value, i));

// output
// 3 0
// 4 1
// 5 2