async-each

async-each

No-bullshit, ultra-simple, 40-lines-of-code async parallel forEach function for JavaScript.

We don't need junky 30K async libs. Really.

For browsers and node.js.

Usage

npm install async-each if you're using NPM.

For browsers, just include async-each before your scripts and use global variable asyncEach

• each(array, iterator, callback) — Array, Function, (optional) Function
• iterator(item, next) receives current item and a callback that will mark the item as done. next callback receives optional error, transformedItem arguments.
• callback(error, transformedArray) optionally receives first error and transformed result Array.

var each = require('async-each');
each(['a.js', 'b.js', 'c.js'], fs.readFile, function(error, contents) {
  if (error) console.error(error);
  console.log('Contents for a, b and c:', contents);
});

asyncEach(list, fn, callback); // use global var in browser

License

The MIT License (MIT)

Copyright (c) 2016 Paul Miller (paulmillr.com)

See LICENSE file.

Similar packages

Other packages similar to async-each

async

The 'async' package is a comprehensive collection of utility functions for working with asynchronous JavaScript. It offers much more than just asynchronous iteration, including control flow, collection manipulation, and utility functions. Compared to async-each, it is more feature-rich but also larger in size, making async-each a lightweight alternative for projects that only require asynchronous iteration.

bluebird

Bluebird is a powerful promise library that, among many other features, offers utilities for concurrent execution of promises, which can be used for asynchronous iteration similar to async-each. Bluebird is known for its performance and extensive feature set. It is a good choice if you are already working with promises and need a broad set of features beyond asynchronous iteration.

p-each-series

p-each-series is a package that allows for serial iteration over an array of items with promises. Unlike async-each, which performs iterations in parallel, p-each-series ensures that each item is processed one after the other, waiting for the current promise to resolve before moving to the next. This is useful for tasks that must be done in order but still benefit from asynchronous execution.