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

Get the first fulfilled promise that satisfies the provided testing function

Run multiple promise-returning & async functions with limited concurrency

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.

`Start a promise chain

Run an array of functions in parallel

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

Runtime for Regenerator-compiled generator and async functions.

Map over promises concurrently

A utility to retry failed async methods.

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.

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

Simple and modern async event emitter

generator async control flow goodness

Full featured Promises/A+ implementation with exceptionally good performance

Determine if a function is a native async function.

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

Create a promise that can be canceled

A function that returns the normally hidden `AsyncFunction` constructor

A basic but performant promise implementation

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

A set of utilities that extend the use of JSON

Retry a promise-returning or async function

Timeout a promise after a specified amount of time

Simple, efficient iterators for OCaml

Explode async and generator functions into a state machine.

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

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

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

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

Async iterator for GitLab API based on axios

A promise based streaming tokenizer

Create a deferred promise

Promise queue with concurrency control

Environment agnostic nextTick polyfill

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

Unzip with Async Iterators

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

asynchronous function queue with adjustable concurrency

Convert an async iterator/iterable to a readable stream

Delay a promise a specified amount of time

Check if something is a promise

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

Promisify an event by waiting for it to be emitted

Isomorphic, functional type-checking for Javascript

Filter promises concurrently

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

Iterate over promises serially

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

Run some code when the process exits

Memoize/cache function results

Lock on asynchronous code

Distributed task scheduler and rate limiter

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

A mutex for guarding async workflows

Create sync/async APIs with usable logic

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.

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

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

Semaphore using `async` and `await`

Wait for a condition to be true

Asynchronous bootstrapping of Node applications

Settle an async function.

Compose promise-returning & async functions into a reusable pipeline

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

Extends Chai with assertions about promises.

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

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

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

Throttle promise-returning & async functions

Map over promises serially

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

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

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

Compose your async functions with elegance.

`timers/promises` for client and server.

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

Run an array of functions in series

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

Take care of your `spawn()`

validate form asynchronous

Modular and fast Promises implementation

Memoize promise-returning & async functions

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.

A simple asynchronous tool

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.

Modern and scalable routing for React applications

An optionally-asynchronous forEach with an interesting interface.

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

Promisified setTimeout

In memory queue system prioritizing tasks

Convert any object to thenable

Apply an async function to each Array element in series.

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

Modern and scalable routing for React applications

Async/await wrapper for easy error handling in js

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.

The JavaScript Task Runner

Wait for any promise to be fulfilled

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

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

Coalesces multiple promises for the same identifier into a single request

Split lines to arrays using Async Iterators

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

Modern and scalable routing for React applications

Abortable async function helpers

Modern and scalable routing for React applications

YouTube IFrame Player API abstraction.

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

Map-like, concurrent promise processing for Node.js

Make array iteration easy when using async/await and Promises

Parser for FTP server responses

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

A sane FTP client implementation for NodeJS

Modern and scalable routing for React applications

Abstract streams to deal with the whole buffered contents.

Tiny library for asynchronous control-flow in JavaScript

Iterators Library

Resolve a path by walking parent directories.

Modern and scalable routing for Web applications

Test whether a path exists on the filesystem.

Async/await error handling support for expressjs

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.

Zero-overhead asynchronous parallel/each/map function call

Add a callback to the next tick queue.

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

call your callbacks in a waterfall, at speed

Creates a value/error pair to mimic promise behavior

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

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

Evaluate asynchronous tasks with configurable concurrency.

Async value container

Read the entire contents of a file.

An event emitter implementation with async support in mind

Transform async/await to promise chains

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

Loading wrapper and TypeScript types for the PayPal JS SDK

Modern and scalable routing for React applications

Zero-overhead asynchronous series/each/map function calls

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

horsepower for your modules

Debounce promise-returning & async functions

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

A simple and non-blocking PNG encoder / decoder.

Flush promises in tests

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

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

Tiny async loader for modern browsers

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

Asynchronous flow control with a functional taste to it

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

Mutex locks for async functions

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

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

Automated browser testing for the modern web development stack.

Library that can be used to retry functions that return promise

ES7 async-await wrapper for the csv package.

async parallellimitmethod as module.

A lightweight promise library

Simple, consistent sync or async process spawning

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

Caching DNS resolve

Express Error Handler for Async Functions

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

seriously like the best async child process library

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

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

Parse ePub electronic book files with Node.JS

Generic browser priority queue.

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

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

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

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Simply gzip and ungzip in Node.js with promises

Asynchronous Array Utilities (for await)

A lean Promises and Async lib for ES6/ES7

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.

operators and stream utilities for async iterators

Async hook

Retry a promise-returning or async function

Wrapper above react-select that supports pagination on menu scroll

co with bluebird promises

Modern and scalable routing for React applications

Test whether all promises passes a testing function

Better Queue for NodeJS

Cooperative multi-tasking for Javascript

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

Async middleware for JavaScript and TypeScript

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

Simple asynchronous middleware pattern

zip and unzip library for node

Asynchronous String.prototype.replace()

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

The iterable toolbox

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

Modern and scalable routing for React applications

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

Convert Node.js streams to streaming iterables

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

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.