JSPM

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

Utility to "pipe" async iterables together

Convert Node.js streams to streaming iterables

Streaming length prefixed buffers with async iterables

Simple async iterables for websocket client connections

Convert push-based streams to pull-based async iterables

Turn Node.js Events into Async Iterables

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

Async pool for iterables

Sophisticated and functionally-minded async with advanced features: coroutines, promises, ES2015 iterables, fantasy-land

Convert push-based streams to pull-based async iterables (fork of queueable)

Simple async iterables for websocket client connections

Create Most.js Streams from async iterables

Promise.all + map for all iterables

Concurrency using chainable async iterables, such as task pool, event queue, pub/sub, merge, chunk, throttle, etc.

Primitives & operators for Communicating Sequential Processes based on async/await and async iterables

The iterable toolbox

Reduce for async iterables.

Async Iterables Interfaces for Web Workers

The iterable toolbox

stream async iterables and promises inside of a json

Merge multiple async iterables into a single sorted async iterable

Map over async iterables

An abstraction to work with iterables of asyncIterables

Run multiple promise-returning & async functions with limited concurrency

merges async iterators

Get the first fulfilled promise that satisfies the provided testing function

Tiny yet feature-packed (async) iteration toolkit.

Higher-order functions and common patterns for asynchronous code

Promisify a callback-style function

A set of yield handlers for Bluebird coroutines

Concat all buffers/strings yielded from an async iterable into a single BufferList/string

Fast, in memory work queue

Minimal async jobs utility library, with streams support

`Start a promise chain

Runtime for Regenerator-compiled generator and async functions.

Run an array of functions in parallel

Map over promises concurrently

Creates a prefetched async iterable

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

A lazy functional iteration library supporting sync, async, and concurrent iteration.

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

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

Simple and modern async event emitter

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.

generator async control flow goodness

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

Retry a promise-returning or async function

A set of utilities that extend the use of JSON

Timeout a promise after a specified amount of time

Create a promise that can be canceled

Explode async and generator functions into a state machine.

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

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

A dependable promises and async utility belt

Create a deferred promise

asynchronous function queue with adjustable concurrency

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

A promise based streaming tokenizer

Promise queue with concurrency control

Environment agnostic nextTick polyfill

Delay a promise a specified amount of time

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

Check if something is a promise

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

asynchronous function queue with adjustable concurrency

Promisify an event by waiting for it to be emitted

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

Filter promises concurrently

Iterate over promises serially

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

Isomorphic, functional type-checking for Javascript

Run some code when the process exits

Memoize/cache function results

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.

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

Lock on asynchronous code

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

Create sync/async APIs with usable logic

0-Deps, simple and fast async generator library for browser and NodeJS

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

Semaphore using `async` and `await`

Asynchronous bootstrapping of Node applications

Wait for a condition to be true

Settle an async function.

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

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

Throttle promise-returning & async functions

Map over promises serially

Extends Chai with assertions about promises.

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

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

Compose promise-returning & async functions into a reusable pipeline

Compose your async functions with elegance.

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.

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

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

`timers/promises` for client and server.

Run an array of functions in series

Take care of your `spawn()`

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

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

An optionally-asynchronous forEach with an interesting interface.

Modern and scalable routing for React applications

Promisified setTimeout

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

In memory queue system prioritizing tasks

Async/await wrapper for easy error handling in js

Convert any object to thenable

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

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

Modern and scalable routing for React applications

Settle promises concurrently and get their fulfillment value or rejection reason

The JavaScript Task Runner

Wait for any promise to be fulfilled

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

Modern and scalable routing for React applications

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

Apply an async function to each Array element in series.

Modern and scalable routing for React applications

Abortable async function helpers

Modern and scalable routing for React applications

Coalesces multiple promises for the same identifier into a single request

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

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

Map-like, concurrent promise processing for Node.js

Parser for FTP server responses

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

Modern and scalable routing for Web applications

Abstract streams to deal with the whole buffered contents.

A sane FTP client implementation for NodeJS

Modern and scalable routing for React applications

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

YouTube IFrame Player API abstraction.

Resolve a path by walking parent directories.

Test whether a path exists on the filesystem.

Make array iteration easy when using async/await and Promises

Stream and serialize nested promises and async iterables over HTTP, workers, etc

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

Async/await error handling support for expressjs

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

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

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

Zero-overhead asynchronous parallel/each/map function call

Async value container

Read the entire contents of a file.

Creates a value/error pair to mimic promise behavior

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

call your callbacks in a waterfall, at speed

Evaluate asynchronous tasks with configurable concurrency.

Abort promises and async iterables

An event emitter implementation with async support in mind

Transform async/await to promise chains

Flush promises in tests

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

Add a callback to the next tick queue.

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

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

Debounce promise-returning & async functions

Functional async flow control library

A simple and non-blocking PNG encoder / decoder.

horsepower for your modules

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

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

Tiny async loader for modern browsers

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

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

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

Asynchronous flow control with a functional taste to it

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

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

Loading wrapper and TypeScript types for the PayPal JS SDK

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.

Caching DNS resolve

Simple, consistent sync or async process spawning

Mutex locks for async functions

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

Express Error Handler for Async Functions

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

Parse ePub electronic book files with Node.JS

Lightweight, reactive, VDOM-less UI/DOM components with async lifecycle and @thi.ng/hiccup compatible

Generic browser priority queue.

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

Asynchronous Array Utilities (for await)

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

A lightweight promise library

Simply gzip and ungzip in Node.js with promises

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

seriously like the best async child process library

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

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

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

Asynchronous iterator function for parallel processing.

Async hook

Retry a promise-returning or async function

co with bluebird promises

Wrapper above react-select that supports pagination on menu scroll

Modern and scalable routing for React applications

Better Queue for NodeJS

Convert event emitters and event targets to ES async iterators

Test whether all promises passes a testing function

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

Simple asynchronous middleware pattern

Async middleware for JavaScript and TypeScript

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

zip and unzip library for node

Asynchronous String.prototype.replace()

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

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

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

Modern and scalable routing for React applications

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.

async conditional execution for async.js or standalone usage

`Promise.all` and `Promise.allSettled` with concurrency option and async iterable result

Async array reduce. Asynchronously applies a function against an accumulator and each element in an array (from left to right, in series) to reduce it to a single value.

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

Modern and scalable routing for React applications

generator async control flow goodness

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

Modern and scalable routing for React applications