History

Nuwan 23d1ece36d fixing controller tests after upgradeing to rails5		2022-02-15 16:27:07 +05:30
..
index.js	fixing controller tests after upgradeing to rails5	2022-02-15 16:27:07 +05:30
license	fixing controller tests after upgradeing to rails5	2022-02-15 16:27:07 +05:30
package.json	fixing controller tests after upgradeing to rails5	2022-02-15 16:27:07 +05:30
readme.md	fixing controller tests after upgradeing to rails5	2022-02-15 16:27:07 +05:30

readme.md

p-each-series

Iterate over promises serially

Useful as a side-effect iterator. Prefer p-map if you don't need side-effects, as it's concurrent.

Install

$ npm install --save p-each-series

Usage

const pEachSeries = require('p-each-series');

const keywords = [
	getTopKeyword() //=> Promise
	'rainbow',
	'pony'
];

const iterator = el => saveToDiskPromise(el); //=> Promise

pEachSeries(keywords, iterator).then(result => {
	console.log(result);
	//=> ['unicorn', 'rainbow', 'pony']
});

API

pEachSeries(input, iterator)

Returns a Promise that is fulfilled when all promises in input and ones returned from iterator are fulfilled, or rejects if any of the promises reject. The fulfillment value is the original input.

input

Type: Iterable<Promise|any>

Iterated over serially in the iterator function.

iterator(element, index)

Type: Function

Return value is ignored unless it's Promise, then it's awaited before continuing with the next iteration.

p-map-series - Map over promises serially
p-pipe - Compose promise-returning & async functions into a reusable pipeline
p-reduce - Reduce a list of values using promises into a promise for a value
p-map - Map over promises concurrently
More…