ASync Packages

asynchronous function queue with adjustable concurrency

Check if something is a promise

Environment agnostic nextTick polyfill

Fast, in memory work queue

Run an array of functions in parallel

Timeout a promise after a specified amount of time

Iterate over promises serially

Write data to a file, replacing the file if it already exists and creating any intermediate directories if they don't already exist. Thin wrapper around node's native fs methods.

Promisify an event by waiting for it to be emitted

Retry a promise-returning or async function

delay the evaluation of a paramless async function and cache the result

Convert a string/promise/array/iterable/asynciterable/buffer/typedarray/arraybuffer/object into a stream

Create a deferred promise

Simple and modern async event emitter

rawStream.pipe(JSONStream.parse()).pipe(streamOfObjects)

Universal WHATWG Fetch API for Node, Browsers and React Native

Reduce a list of values using promises into a promise for a value

elegant & feature rich browser / node HTTP with a fluent API

A basic but performant promise implementation

Big-friendly JSON. Asynchronous streaming functions for large JSON data sets.