JSPM

Higher order functions for iterators and async iterators

Convert event emitters and event targets to ES async iterators

Foundation for async iterators as streams

Combine Multiple Asynchronous Iterators in one (not a sequence)

ASync CLasses + ASync ITerators

An async iterator that joins multiple other async iterators in order, one after another.

merges async iterators

Parallel mapping for async iterators

HighWatermark Processing with Async Iterators

push items to pulling iterators

lazy fluent async iterators

Batteries-included utility functions to work with async iterables available in ES2018/TypeScript

Async versions of various highly composable transducers, reducers and iterators

Create async iterators from Arrays, EventEmitters, and Streams

transform input into equally-sized blocks of output using async iterators

Minimal async jobs utility library, with streams support

Convert RxJS Observable streams to async iterators

Promises and async iterators are awesome, lets turn them inside out. Promise.withResolvers polyfill.

Asyncronous Iterators Collection

32 bit unsigned host byte order length prefix message streams as async iterators

Functional Iterable and AsyncIterable

Breaks down iterators in to chunks

async.mapLimit's functionality available as a standalone npm module

An utility belt for working with streams using async iterators

Oboe.js reads json, giving you the objects as they are found without waiting for the stream to finish

Streaming library that works with async iterators and has a similar API to Array

A collection of utilities for async iterables. Designed to replace your streams.

lightweight async iterators (map, each, reduce)

Compose chains of functions to manipulate data via synchronous and asynchronous iterators

A library of async iterator extensions for JavaScript including ```map```, ```reduce```, ```filter```, ```flatMap```, ```pipe``` and [more](https://github.com/jamiemccrindle/axax/blob/master/docs/API.md#functions).

Next-generation ZeroMQ bindings for Node.js

Run multiple promise-returning & async functions with limited concurrency

Get the first fulfilled promise that satisfies the provided testing function

Promisify a callback-style function

Higher-order functions and common patterns for asynchronous code

Runtime for Regenerator-compiled generator and async functions.

Fast, in memory work queue

Map over promises concurrently

Transform async functions to generator functions with speed and simplicity.

Allows users to use generators in order to write common functions that can be both sync or async.

`Start a promise chain

Run an array of functions in parallel

A utility to retry failed async methods.

Neo-Async is a drop-in replacement for Async, it almost fully covers its functionality and runs faster

JavaScript parser, mangler/compressor and beautifier toolkit for ES6+

Convert an abstract-chunk-store compliant store into an async iterator, or write to using an async iterator.

Simple and modern async event emitter

generator async control flow goodness

Utility method to run function either synchronously or asynchronously using the common `this.async()` style.

Full featured Promises/A+ implementation with exceptionally good performance

Determine if a function is a native async function.

A function that returns the normally hidden `AsyncFunction` constructor

A basic but performant promise implementation

Create a promise that can be canceled

A set of utilities that extend the use of JSON

Timeout a promise after a specified amount of time

Turn a writable and readable stream into a streams2 duplex stream with support for async initialization and streams1/streams2 input

Universal WHATWG Fetch API for Node, Browsers and React Native

Retry a promise-returning or async function

Explode async and generator functions into a state machine.

FTP client for Node.js, supports FTPS over TLS, IPv6, Async/Await, and Typescript.

Async iterator for GitLab API based on axios

Contain async insanity so that the dark pony lord doesn't eat souls

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

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

A promise based streaming tokenizer

Unzip with Async Iterators

Promise queue with concurrency control

Create a deferred promise

Environment agnostic nextTick polyfill

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

asynchronous function queue with adjustable concurrency

Convert an async iterator/iterable to a readable stream

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

Delay a promise a specified amount of time

Check if something is a promise

asynchronous function queue with adjustable concurrency

Promisify an event by waiting for it to be emitted

async/await for node.js

A tiny, zero-dependency yet spec-compliant asynchronous iterator polyfill/ponyfill for ReadableStreams.

Isomorphic, functional type-checking for Javascript

No-bullshit, ultra-simple, 35-lines-of-code async parallel forEach / map function for JavaScript.

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.

Iterate over promises serially

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

Run some code when the process exits

Memoize/cache function results

Filter promises concurrently

Distributed task scheduler and rate limiter

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

Lock on asynchronous code

Create sync/async APIs with usable logic

A mutex for guarding async workflows

Inspect the life of handle objects in node

Map over an array or object of values in parallel or series, passing each through the async iterator, with optional lifecycle hooks.

`net.Server#listen()` helper that returns a Promise for async / await

Asynchronous bootstrapping of Node applications

Run multiple promise-returning & async functions with limited concurrency using native ES9

Semaphore using `async` and `await`

Wait for a condition to be true

Compose promise-returning & async functions into a reusable pipeline

Settle an async function.

Extends Chai with assertions about promises.

An implementation for Array.fromAsync, which dumps an async iterator into an array.

A Promise-based interface into processes created by child_process.spawn

Native Promise Only: A polyfill for native ES6 Promises **only**, nothing else.

Map over promises serially

Throttle promise-returning & async functions

Allows libraries to handle various caller provided asynchronous functions uniformly. Maps promises, observables, child processes and streams, and callbacks to callback style.

Compose your async functions with elegance.

Async module-loading library and protocol for bundlers/loaders targeting isomorphic apps and Node.js.

`AsyncIterator.prototype`, or a shared object to use.

Run some code when the process exits (supports async hooks and pm2 clustering)

Run promise-returning & async functions concurrently with optional limited concurrency

Run an array of functions in series

Watch globs and execute a function upon change, with intelligent defaults for debouncing and queueing.

Run promise-returning & async functions in series, each passing its result to the next

validate form asynchronous

Take care of your `spawn()`

`timers/promises` for client and server.

Wait for multiple callback

Run an array of functions in parallel, but limit the number of tasks executing at the same time

The scrypt password-based key derivation function with sync and cancellable async.

Modular and fast Promises implementation

Memoize promise-returning & async functions

Promisified setTimeout

An optionally-asynchronous forEach with an interesting interface.

A node- and browser-ready async (now with promises) counterpart of Array.prototype.forEach

Modern and scalable routing for React applications

A simple asynchronous tool

A lightweight Promises/A+ and when() implementation, plus other async goodies.

Async/await wrapper for easy error handling in js

Runs a list of async tasks, passing the results of each into the next one

In memory queue system prioritizing tasks

Convert any object to thenable

Wait for expectation to be true, useful for integration and end to end testing

The JavaScript Task Runner

Apply an async function to each Array element in series.

Wait for any promise to be fulfilled

Modern and scalable routing for React applications

Modern and scalable routing for React applications

Modern and scalable routing for React applications

Make a promise always fulfill with its actual fulfillment value or rejection reason

Modern and scalable routing for React applications

Abortable async function helpers

Settle promises concurrently and get their fulfillment value or rejection reason

support for asynchronous development with a Promise based task Scheduler, several different Promise implementations (synchronous, idle, asynchronous and native runtime wrappers), await helpers, and aliases all built and tested using TypeScript.

Wait for a specified number of promises to be fulfilled

Coalesces multiple promises for the same identifier into a single request

Convert RxJS Observable streams to async iterators (for RxJS 5.0+)

Turns async function into sync via JavaScript wrapper of Node event loop

Node.js test runner that lets you develop with confidence.

Split lines to arrays using Async Iterators

Modern and scalable routing for Web applications

Map-like, concurrent promise processing for Node.js

YouTube IFrame Player API abstraction.

Tiny library for asynchronous control-flow in JavaScript

Parser for FTP server responses

The fastest key/value storage for React Native. ~30x faster than AsyncStorage! Works on Android, iOS and Web.

Make array iteration easy when using async/await and Promises

Modern and scalable routing for React applications

Iterators Library

Abstract streams to deal with the whole buffered contents.

Resolve a path by walking parent directories.

A sane FTP client implementation for NodeJS

Read the entire contents of a file.

Test whether a path exists on the filesystem.

Async value container

Get the arguments of a function, arrow function, generator function, async function

Modern version of setInterval for promises and async functions available in Node.js and browsers.

Bundle results of async functions calls into one callback with all the results

Zero-overhead asynchronous parallel/each/map function call

Async/await error handling support for expressjs

Add a callback to the next tick queue.

Creates a value/error pair to mimic promise behavior

Combine async iterators into a Generator object (iterator and iterable)

call your callbacks in a waterfall, at speed

An implementation of Domain-like error handling, built on async_hooks

Flush promises in tests

An event emitter implementation with async support in mind

Transform async/await to promise chains

Simple, efficient iterators for OCaml

Evaluate asynchronous tasks with configurable concurrency.

Modern and scalable routing for React applications

A plugin for the Acorn parser that understands the ES7 keywords async and await

Loading wrapper and TypeScript types for the PayPal JS SDK

Cancelable Async Flows: a wrapper to treat generators as cancelable async functions

Zero-overhead asynchronous series/each/map function calls

horsepower for your modules

Maintained fork of later. Determine later (or previous) occurrences of recurring schedules

SQLite client for Node.js applications with SQL-based migrations API written in Typescript

Automagically generates command-line interfaces (CLI) for any module. Expected options and help sections are created automatically based on parameters names, with support to async. It can be installed globally, in order to *execute* any module, or .js fil

RxJS based middleware for Redux. Compose and cancel async actions and more.

Asynchronous flow control with a functional taste to it

Automated browser testing for the modern web development stack.

Mutex locks for async functions

Debounce promise-returning & async functions

A simple and non-blocking PNG encoder / decoder.

Chainable asynchronous flow control with sequential and parallel primitives and pipeline-style error handling

Zip/Tar a complete folder or a glob list into a zip/tgz file

Tiny async loader for modern browsers

Library that can be used to retry functions that return promise

Make bluebird work with the continuation-local-storage module.

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

async parallellimitmethod as module.

The next generation of events handling for javascript! New: abstract away the network!

A module for sequencing and executing tasks and dependencies in maximum concurrency

A lightweight promise library

Simple, consistent sync or async process spawning

ES7 async-await wrapper for the csv package.

Generic browser priority queue.

Caching DNS resolve

Just like EventEmitter, but with support for callbacks and interuption of the listener-chain

Express Error Handler for Async Functions

A tiny version of Golang's WaitGroup with typings, promises, and zero dependencies.

Create a lazy promise that defers execution until it's awaited or when `.then()`, `.catch()`, or `.finally()` is called

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

seriously like the best async child process library

Promisify any of: callback function, sync function, generator function, promise-returning function

Simply gzip and ungzip in Node.js with promises

Parse ePub electronic book files with Node.JS

Asynchronous Array Utilities (for await)

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A lean Promises and Async lib for ES6/ES7

Asynchronous iterator function for parallel processing.

operators and stream utilities for async iterators

Async hook

Checks whether a command line command exists in the current environment.

Wrapper above react-select that supports pagination on menu scroll

Parse a function into an object using espree, acorn or babylon parsers. Extensible through Smart Plugins

co with bluebird promises

Modern and scalable routing for React applications

Test whether all promises passes a testing function

Retry a promise-returning or async function

Better Queue for NodeJS

Simple asynchronous middleware pattern

Async middleware for JavaScript and TypeScript

Cooperative multi-tasking for Javascript

zip and unzip library for node

Pipe functions in a Unix-like style. It supports Promises (async) anywhere in the pipeline and every step will be executed sequentially. The return (resolve in case of Promises) of each function will be passed in as an argument to the next one

Waits until the given predicate function returns a truthy value, then resolves

With Bruno CLI, you can now run your API collections with ease using simple command line commands.

Asynchronous String.prototype.replace()

Convert Node.js streams to streaming iterables

Modern and scalable routing for React applications

A lightweight Deferred implementation, on top of Promises/A+

Run an array of functions in series, each passing its results to the next function (waterfall)

Ambi lets you execute any function ambidextrously; providing you the ability to execute any function (be it synchronous, asynchronous, returns, callbacks, promises) as if it returned a promise.

Enables simple, yet robust handling of async action creators in Redux

CLI Simple, Stupid. Automatic discovery of parameters names. Provides an easy and minimal setup by passing in only a function reference without the need of declaring all expected options names or create a help section by hand. Support to sync / async. Sup