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

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

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

Promise.all + map for all iterables

The iterable toolbox

stream async iterables and promises inside of a json

Reduce for async iterables.

The iterable toolbox

Merge multiple async iterables into a single sorted async iterable

Async Iterables Interfaces for Web Workers

Tiny yet feature-packed (async) iteration toolkit.

Run multiple promise-returning & async functions with limited concurrency

Map over async iterables

Get the first fulfilled promise that satisfies the provided testing function

merges async iterators

Higher-order functions and common patterns for asynchronous code

Promisify a callback-style function

Fast, in memory work queue

Minimal async jobs utility library, with streams support

Runtime for Regenerator-compiled generator and async functions.

A set of yield handlers for Bluebird coroutines

Creates a prefetched async iterable

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

`Start a promise chain

Map over promises concurrently

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

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.

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

generator async control flow goodness

Full featured Promises/A+ implementation with exceptionally good performance

Determine if a function is a native async function.

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

An abstraction to work with iterables of asyncIterables

Create a promise that can be canceled

A function that returns the normally hidden `AsyncFunction` constructor

A basic but performant promise implementation

A set of utilities that extend the use of JSON

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

Retry a promise-returning or async function

Timeout a promise after a specified amount of time

Explode async and generator functions into a state machine.

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

A dependable promises and async utility belt

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

asynchronous function queue with adjustable concurrency

A promise based streaming tokenizer

Create a deferred promise

Promise queue with concurrency control

Environment agnostic nextTick polyfill

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

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

Check if something is a promise

Promisify an event by waiting for it to be emitted

Delay a promise a specified amount of time

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

Iterate over promises serially

asynchronous function queue with adjustable concurrency

Isomorphic, functional type-checking 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.

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

Filter promises concurrently

Run some code when the process exits

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

Memoize/cache function results

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

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.

Create sync/async APIs with usable logic

Asynchronous bootstrapping of Node applications

`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`

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

Map over promises serially

Settle an async function.

Wait for a condition to be true

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

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

Compose promise-returning & async functions into a reusable pipeline

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.

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.

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

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

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

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

validate form asynchronous

Run an array of functions in series

Wait for multiple callback

Take care of your `spawn()`

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

`timers/promises` for client and server.

An optionally-asynchronous forEach with an interesting interface.

Modular and fast Promises implementation

Memoize promise-returning & async functions

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

A simple asynchronous tool

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

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

Modern and scalable routing for React applications

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

Promisified setTimeout

Convert any object to thenable

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

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

The JavaScript Task Runner

Async/await wrapper for easy error handling in js

Wait for any promise to be fulfilled

In memory queue system prioritizing tasks

Modern and scalable routing for React applications

Apply an async function to each Array element in series.

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

Modern and scalable routing for React applications

Settle promises concurrently and get their fulfillment value or rejection reason

Wait for a specified number of promises to be fulfilled

Coalesces multiple promises for the same identifier into a single request

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

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.

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

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

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

Modern and scalable routing for React applications

YouTube IFrame Player API abstraction.

Make array iteration easy when using async/await and Promises

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

Parser for FTP server responses

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

Modern and scalable routing for Web applications

Abstract streams to deal with the whole buffered contents.

A sane FTP client implementation for NodeJS

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

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

Resolve a path by walking parent directories.

Test whether a path exists on the filesystem.

Creates a value/error pair to mimic promise behavior

Async/await error handling support for expressjs

Read the entire contents of a file.

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

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.

Async value container

Add a callback to the next tick queue.

call your callbacks in a waterfall, at speed

Transform async/await to promise chains

Zero-overhead asynchronous parallel/each/map function call

Evaluate asynchronous tasks with configurable concurrency.

Zero-overhead asynchronous series/each/map function calls

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

Abort promises and async iterables

Flush promises in tests

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

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

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

An event emitter implementation with async support in mind

Automated browser testing for the modern web development stack.

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

horsepower for your modules

Modern and scalable routing for React applications

Debounce promise-returning & async functions

Functional async flow control library

Library that can be used to retry functions that return promise

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

A simple and non-blocking PNG encoder / decoder.

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

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

Tiny async loader for modern browsers

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

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

Asynchronous flow control with a functional taste to it

Mutex locks for async functions

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

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

async parallellimitmethod as module.

A lightweight promise library

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

Simple, consistent sync or async process spawning

Caching DNS resolve

Express Error Handler for Async Functions

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

Asynchronous Array Utilities (for await)

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

ES7 async-await wrapper for the csv package.

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

Parse ePub electronic book files with Node.JS

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

seriously like the best async child process library

Wrapper above react-select that supports pagination on menu scroll

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

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

Asynchronous iterator function for parallel processing.

Simply gzip and ungzip in Node.js with promises

Generic browser priority queue.

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

co with bluebird promises

Async hook

Test whether all promises passes a testing function

Modern and scalable routing for React applications

Retry a promise-returning or async function

Better Queue for NodeJS

Cooperative multi-tasking for Javascript

Convert event emitters and event targets to ES async iterators

Async middleware for JavaScript and TypeScript

zip and unzip library for node

Simple asynchronous middleware pattern

generator async control flow goodness

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 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.

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

Modern and scalable routing for React applications

Asynchronous String.prototype.replace()

DOM Promise and Promises/A+ implementation for Node.js and browsers

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

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

Modern and scalable routing for React applications

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

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

Higher order functions for iterators and async iterators

Modern and scalable routing for React applications

Asynchronous IO (for Azure Open Source Projects)