https://github.com/sindresorhus/p-series

Run promise-returning & async functions in series
https://github.com/sindresorhus/p-series

Last synced: about 21 hours ago
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Run promise-returning & async functions in series

• Host: GitHub
• URL: https://github.com/sindresorhus/p-series
• Owner: sindresorhus
• License: mit
• Created: 2016-11-22T07:31:48.000Z (about 8 years ago)
• Default Branch: main
• Last Pushed: 2021-08-12T23:31:55.000Z (over 3 years ago)
• Last Synced: 2025-01-07T11:08:55.250Z (8 days ago)
• Language: JavaScript
• Size: 13.7 KB
• Stars: 66
• Watchers: 6
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: license

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• promise-fun - p-series - returning & async functions in series (Packages)

README

        
# p-series

> Run promise-returning & async functions in series

*Note:* You can just use `await` in a for-loop to get the same behavior. This package was useful before async/await existed.

If you're doing the same work in each function, use [`p-each-series`](https://github.com/sindresorhus/p-each-series) instead.

See [`p-all`](https://github.com/sindresorhus/p-all) for a concurrent counterpart.

## Install

```

$ npm install p-series

```

## Usage

```js

import pSeries from 'p-series';

import got from 'got';

const tasks = [

	() => got('https://sindresorhus.com'),

	() => checkSomething(),

	() => doSomethingElse()

];

console.log(await pSeries(tasks));

```

## API

### pSeries(tasks)

Returns a `Promise` that is fulfilled when all promises returned from calling the functions in `tasks` are fulfilled, or rejects if any of the promises reject. The fulfilled value is an `Array` of the fulfilled values.

#### tasks

Type: `Iterable`

Functions are expected to return a value. If a Promise is returned, it's awaited before continuing with the next task.

## Related

- [p-all](https://github.com/sindresorhus/p-all) - Run promise-returning & async functions concurrently with optional limited concurrency

- [p-waterfall](https://github.com/sindresorhus/p-waterfall) - Run promise-returning & async functions in series, each passing its result to the next

- [p-each-series](https://github.com/sindresorhus/p-each-series) - Iterate over promises serially

- [More…](https://github.com/sindresorhus/promise-fun)