promise-do-whilst [![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Dependency Status][daviddm-image]][daviddm-url]

November 25, 2015 · View on GitHub

Calls a function repeatedly while a condition returns true and then resolves the promise

See Also

Installation

$ npm install --save promise-do-whilst

Usage

import promiseDoWhilst from 'promise-do-whilst';

let count = 0;

promiseDoWhilst(() => {
  count++;
}, () => {
  return count < 5;
}).then(() => {
  console.log(count);
  // => 5
});

// ...

let max = 0;

promiseDoWhilst(() => {
  max++;
}, () => {
  return max < 1;
}).then(() => {
  console.log(max);
  // => 1
});

API

promiseDoWhilst(action, condition)

Executes action repeatedly while condition returns true and then resolves the promise. Rejects if action returns a promise that rejects or if an error is thrown anywhere.

action

Type: function

Action to run for each iteration.

You can return a promise and it will be handled.

condition