Awesome
p-do-whilst
Calls a function repeatedly while a condition returns true and then resolves the promise
Think async version of the do…while
statement.
Install
npm install p-do-whilst
Usage
Choose your preferred style:
import pDoWhilst from 'p-do-whilst';
let count = 0;
await pDoWhilst(
() => count++,
() => count < 5
);
console.log(count);
//=> 5
Or:
import pDoWhilst from 'p-do-whilst';
const count = await pDoWhilst(
currentCount => currentCount + 1,
currentCount => currentCount < 5,
0
);
console.log(count);
//=> 5
API
pDoWhilst(action, condition, initialValue?)
Executes action
repeatedly while condition
returns true
and then resolves to the result of the last call to action
. Rejects if action
returns a promise that rejects or if an error is thrown anywhere.
action
Type: Function
Arguments: The value the last call to action
function returns or initialValue
for the first iteration.
Action to run for each iteration.
You can return a promise and it will be handled.
condition
Type: Function
Arguments: The value the action
function returns.
Expected to return a boolean
or a Promise<boolean>
of whether to continue.
Related
- p-whilst - While a condition returns true, calls a function repeatedly, 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…