While a condition returns true, calls a function repeatedly, and then resolves the promise
Think async version of the while
statement.
npm install p-whilst
import pWhilst from 'p-whilst';
let count = 0;
await pWhilst(
() => count < 5,
() => count++
);
console.log(count);
//=> 5
While condition
returns true
, executes action
repeatedly, and then resolves the promise to the result of the last call to action
. Rejects if action
returns a promise that rejects or if an error is thrown anywhere.
Type: Function
Arguments: The value the action
function returns or initialValue
for the first iteration.
Expected to return a boolean
or a Promise<boolean>
that indicates whether to execute action
.
Type: Function
Arguments: The value the last call to action
function returns.
Action to run for each iteration.
You can return a promise and it will be handled.
- p-do-whilst - Calls a function repeatedly while a condition returns true and then resolves the promise
- p-forever - Run promise-returning & async functions repeatedly until you end it
- p-wait-for - Wait for a condition to be true
- More…