modern-async

modern-async

A modern JavaScript tooling library for asynchronous operations using async/await and promises.

This library is a modernized alternative to a lot of libraries like Async.js that were created using the legacy callback style to handle asynchronous operations. Its goal is to be as complete as any of those libraries while being built from the very beginning with async/await and promises in mind.

See the documentation.

• Exclusively uses async/await and promises in its code, tests and documentation.
• Has almost no dependencies.
• Has 100% code coverage.
• Bundled for ESM modules, CommonJS and UMD.
• Works in node >= 10.0 and in the vast majority of browsers (old browser compatibility can be achieved using Babel and shims).

This project accepts feature requests !

The goal of modern-async is to be as complete as possible. I coded everything I missed in the past while developing, yet it's difficult to know what other people would really need. So if you would like some more feature start by reading the contribution guide.

Installation

npm install --save modern-async

Or use jsDelivr to get the UMD version. The content of the library will be available under the modernAsync global variable.

Usage

import { map, asyncRoot, sleep } from 'modern-async'

// or

const { map, asyncRoot, sleep } = require('modern-async')

asyncRoot(async () => {
  const array = [1, 2, 3]
  const result = await map(array, async (v) => {
    await sleep(10)
    return v * 2
  })
  console.log(result)
})

See the documentation for the rest.

Changelog

See the changelog.

License

See the license here.

Changelog

1.0.2

• Altered UMD deployment to only support browsers that support async/await language feature. The reason is that bundling both regenerator-runtime and all the necessary shims is too complex. For older browsers it is easier to just process the lib with Babel then add regenerator-runtime and core-js.