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

ASync CLasses + ASync ITerators

Combine Multiple Asynchronous Iterators in one (not a sequence)

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

merges async iterators

Parallel mapping for async iterators

push items to pulling iterators

HighWatermark Processing with Async 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

Asyncronous Iterators Collection

Convert RxJS Observable streams to async iterators

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

An utility belt for working with streams using async iterators

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

Breaks down iterators in to chunks

Functional Iterable and AsyncIterable

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

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)

A lazy iterator interface for synchronous and asynchronous iterators

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

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

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

Higher-order functions and common patterns for asynchronous code

Promisify a callback-style function

Fast, in memory work queue

Transform async functions to generator functions with speed and simplicity.

Runtime for Regenerator-compiled generator and async functions.

`Start a promise chain

Map over promises concurrently

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

Run an array of functions in parallel

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

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

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

Simple and modern async event emitter

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

generator async control flow goodness

Full featured Promises/A+ implementation with exceptionally good performance

Determine if a function is a native async function.

Create a promise that can be canceled

A function that returns the normally hidden `AsyncFunction` constructor

A basic but performant promise implementation

Universal WHATWG Fetch API for Node, Browsers and React Native

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

Timeout a promise after a specified amount of time

A set of utilities that extend the use of JSON

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.

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

Simple, efficient iterators for OCaml

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

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

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

A promise based streaming tokenizer

Async iterator for GitLab API based on axios

asynchronous function queue with adjustable concurrency

Create a deferred promise

Promise queue with concurrency control

Environment agnostic nextTick polyfill

Convert an async iterator/iterable to a readable stream

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

Check if something is a promise

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

Unzip with Async Iterators

Promisify an event by waiting for it to be emitted

Delay a promise a specified amount of time

asynchronous function queue with adjustable concurrency

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

async/await for node.js

Isomorphic, functional type-checking for Javascript

Iterate over promises serially

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

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

Run some code when the process exits

Filter promises concurrently

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.

Memoize/cache function results

operators and stream utilities for async iterators

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

Distributed task scheduler and rate limiter

Lock on asynchronous code

A mutex for guarding async workflows

Create sync/async APIs with usable logic

Inspect the life of handle objects in node

JavaScript data processing with asynchronous iterators

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`

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

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

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

Wait for a condition to be true

Map over promises serially

Settle an async function.

Compose promise-returning & async functions into a reusable pipeline

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

Extends Chai with assertions about promises.

Throttle promise-returning & async functions

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

Split lines to arrays using Async Iterators

Compose your async functions with elegance.

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

validate form asynchronous

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

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

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

Wait for multiple callback

`timers/promises` for client and server.

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

Run an array of functions in series

Take care of your `spawn()`

Modular and fast Promises implementation

An optionally-asynchronous forEach with an interesting interface.

Memoize promise-returning & async functions

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.

A simple asynchronous tool

Modern and scalable routing for React applications

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

Convert any object to thenable

Promisified setTimeout

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

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

In memory queue system prioritizing tasks

The JavaScript Task Runner

Wait for any promise to be fulfilled

Async/await wrapper for easy error handling in js

Modern and scalable routing for React applications

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

Apply an async function to each Array element in series.

Modern and scalable routing for React applications

Settle promises concurrently and get their fulfillment value or rejection reason

Coalesces multiple promises for the same identifier into a single request

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

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

Modern and scalable routing for React applications

Modern and scalable routing for React applications

Abortable async function helpers

Map-like, concurrent promise processing for Node.js

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

Modern and scalable routing for React applications

YouTube IFrame Player API abstraction.

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

Parser for FTP server responses

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

Tiny library for asynchronous control-flow in JavaScript

Make array iteration easy when using async/await and Promises

Modern and scalable routing for Web applications

Abstract streams to deal with the whole buffered contents.

A sane FTP client implementation for NodeJS

Resolve a path by walking parent directories.

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

Creates a value/error pair to mimic promise behavior

Iterators Library

Test whether a path exists on the filesystem.

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

Async/await error handling support for expressjs

Zero-overhead asynchronous parallel/each/map function call

Read the entire contents of a file.

Async value container

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

Add a callback to the next tick queue.

call your callbacks in a waterfall, at speed

Evaluate asynchronous tasks with configurable concurrency.

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

Zero-overhead asynchronous series/each/map function calls

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

Transform async/await to promise chains

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

An event emitter implementation with async support in mind

Flush promises in tests

Modern and scalable routing for React applications

Loading wrapper and TypeScript types for the PayPal JS SDK

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

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

Automated browser testing for the modern web development stack.

Multiplexer of async iterators for JavaScript

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

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

horsepower for your modules

Library that can be used to retry functions that return promise

Debounce promise-returning & async functions

Asynchronous flow control with a functional taste to it

A simple and non-blocking PNG encoder / decoder.

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

Tiny async loader for modern browsers

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

Mutex locks for async functions

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

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

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

A lightweight promise library

ES7 async-await wrapper for the csv package.

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

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

Caching DNS resolve

Express Error Handler for Async Functions

seriously like the best async child process library

async parallellimitmethod as module.

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

Simple, consistent sync or async process spawning

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

Generic browser priority queue.

This package provides barebone utilities for working with (sync and async) iterators and iterable values in nodejs.

Parse ePub electronic book files with Node.JS

Wrapper above react-select that supports pagination on menu scroll

Simply gzip and ungzip in Node.js with promises

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

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

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A lean Promises and Async lib for ES6/ES7

Async hook

Asynchronous Array Utilities (for await)

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

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

Asynchronous iterator function for parallel processing.

Async middleware for JavaScript and TypeScript

co with bluebird promises

Modern and scalable routing for React applications

Retry a promise-returning or async function

Test whether all promises passes a testing function

zip and unzip library for node

Better Queue for NodeJS

Cooperative multi-tasking for Javascript

Simple asynchronous middleware pattern

Modern and scalable routing for React applications

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

Convert Node.js streams to streaming iterables

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

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

Modern and scalable routing for React applications

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