wait-for-es7

WaitFor - util function which is waiting for some condition (checkFn) during timeout, checks it every interval. Rejects if condition not fulfilled.

Install

npm install wait-for-es7 --save

or

yarn add wait-for-es7

Usage

import waitFor from "wait-for-es6";
 
const startTime = new Date().getTime();
 
await waitFor( () => startTime < new Date().getTime() - 4000, { timeout: 5000, interval: 500 } );
// Not rejected, because 4000ms < 5000ms
 
await waitFor( () => false, { timeout: 5000, interval: 500 } );
// Will reject, because checkFn always return false
 

API

async function waitFor(checkFn: () => boolean | Promise<boolean>, options: IWaitForOptions = {});
 
interface IWaitForOptions {
    timeout?: number;
    interval?: number;
}

Test

npm install
npm test