JSPM

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.

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

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

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

A promise based streaming tokenizer

Create a deferred promise

Promise queue with concurrency control

asynchronous function queue with adjustable concurrency

Environment agnostic nextTick polyfill

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

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

Foundation for async iterators as streams

Check if something is a promise

Delay a promise a specified amount of time

Promisify an event by waiting for it to be emitted

asynchronous function queue with adjustable concurrency

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

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

Isomorphic, functional type-checking for Javascript

Iterate over promises serially

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

Run some code when the process exits

Filter promises concurrently

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

Memoize/cache function results

Distributed task scheduler and rate limiter

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 mutex for guarding async workflows

Lock on asynchronous code

Create sync/async APIs with usable logic

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`

Simple and small flow control library to execute async functions in sequence

Settle an async function.

Wait for a condition to be true

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

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

Map over promises serially

Throttle promise-returning & async functions

Compose promise-returning & async functions into a reusable pipeline

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.

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

Compose your async functions with elegance.

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.

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

validate form asynchronous

Take care of your `spawn()`

Wait for multiple callback

`timers/promises` for client and server.

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

Asynchronously emit event an event based on the arguments length.

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

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

Modular and fast Promises implementation

Memoize promise-returning & async functions

An optionally-asynchronous forEach with an interesting interface.

Modern and scalable routing for React applications

A simple asynchronous tool

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

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

Promisified setTimeout

Convert any object to thenable

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

In memory queue system prioritizing tasks

Async/await wrapper for easy error handling in js

The JavaScript Task Runner

Modern and scalable routing for React applications

Wait for any promise to be fulfilled

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

Modern and scalable routing for React applications

Apply an async function to each Array element in series.

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.

Settle promises concurrently and get their fulfillment value or rejection reason with optional limited concurrency

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

Wait for a specified number of promises to be fulfilled

IPC over PostgreSQL LISTEN/NOTIFY/UNLISTEN exposed as an EventEmitter

Coalesces multiple promises for the same identifier into a single request

Modern and scalable routing for React applications

Modern and scalable routing for React applications

Abortable async function helpers

Force the supplied callback in to async execution

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

Modern and scalable routing for React applications

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

YouTube IFrame Player API abstraction.

Parser for FTP server responses

Abstract streams to deal with the whole buffered contents.

Modern and scalable routing for Web applications

Make array iteration easy when using async/await and Promises

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

Resolve a path by walking parent directories.

A sane FTP client implementation for NodeJS

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

Test whether a path exists on the filesystem.

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

Creates a value/error pair to mimic promise behavior

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

Async/await error handling support for expressjs

Read the entire contents of a file.

Zero-overhead asynchronous parallel/each/map function call

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

call your callbacks in a waterfall, at speed

Async value container

Add a callback to the next tick queue.

Evaluate asynchronous tasks with configurable concurrency.

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

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

Zero-overhead asynchronous series/each/map function calls

Transform async/await to promise chains

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

An event emitter implementation with async support in mind

An async channel implementation for Node.js and the browser in typescript.

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

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

Loading wrapper and TypeScript types for the PayPal JS SDK

Modern and scalable routing for React applications

horsepower for your modules

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

Debounce promise-returning & async functions

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

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

Asynchronous flow control with a functional taste to it

Library that can be used to retry functions that return promise

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

A simple and non-blocking PNG encoder / decoder.

Tiny async loader for modern browsers

Mutex locks for async functions

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

Automated browser testing for the modern web development stack.

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

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

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

ES7 async-await wrapper for the csv package.

seriously like the best async child process library

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

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

A lightweight promise library

Caching DNS resolve

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

Express Error Handler for Async Functions

This is the module that you need to send rss news to a telegram channel.

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

Generic browser priority queue.

Parse ePub electronic book files with Node.JS

Simple, consistent sync or async process spawning

Simply gzip and ungzip in Node.js with promises

async parallellimitmethod as module.

A lean Promises and Async lib for ES6/ES7

Asynchronous Array Utilities (for await)

Wrapper above react-select that supports pagination on menu scroll

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

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

Async hook

co with bluebird promises

Asynchronous iterator function for parallel processing.

Better Queue for NodeJS

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

Modern and scalable routing for React applications

Async middleware for JavaScript and TypeScript

Convert event emitters and event targets to ES async iterators

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zip and unzip library for node

A parallel, asynchronous implementation of forEach in ES6 with a configurable maximum degree of parallelism.

Retry a promise-returning or async function

Cooperative multi-tasking for Javascript

Simple asynchronous middleware pattern

Test whether all promises passes a testing function

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

Modern and scalable routing for React applications

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

Asynchronous String.prototype.replace()

Make an asynchronous function synchronous

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

[](https://reactjs.org) [](https://www.typescriptlang.org/)

A JavaScript extension package for building strong and modern applications.

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

Modern and scalable routing for React applications

Convert Node.js streams to streaming iterables

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

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

Higher order functions for iterators and async iterators

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.

The iterable toolbox

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

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.

Modern and scalable routing for React applications

Async loader for google maps api (browser, typescript)

Tiny, dependency free promisify library.

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

Modern and scalable routing for React applications

Asynchronous IO (for Azure Open Source Projects)

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

Runs Promises in a pool that limits their concurrency.

Create a transform stream using await instead of callbacks

async conditional execution for async.js or standalone usage

A readable async stream which can be iterated over using a for-await-of loop.

generator async control flow goodness

Modern and scalable routing for React applications

Modern and scalable routing for React applications

Modern and scalable routing for React applications

Modern and scalable routing for React applications

OpenAPI common code for Azure Tools.

Modern and scalable routing for React applications

Modern and scalable routing for applications

Modern and scalable routing for React applications

multiple hash functions

Modern and scalable routing for React applications

Modern and scalable routing for React applications

Group together synchronous and asynchronous tasks and execute them with support for concurrency, naming, and nesting.

Enhances html-webpack-plugin functionality with async and defer attributes for script elements

Modern and scalable routing for React applications

LazyLoad is a lightweight (2.4 kB) and flexible script that speeds up your web application by deferring the loading of your below-the-fold images, videos and iframes to when they will enter the viewport. It's written in plain "vanilla" JavaScript, it leve

Detects missing await on async function calls

Utility to "pipe" async iterables together

Common URI handling code.

A little retry tool to execute a function until the function is successful. Can also bind a timeout to a function. This lib is usable in typescript, in javascript, in node, in SPA tools (rest, Vue, Svelte...) and browser (available in ESM and common js fo

React hooks for RxJS Observables. Simple, flexible, testable and performant.

Promise wrapper over MQTT.js

Amazon S3 client for upload/download files

Nexus TypeScript SDK

A module for batching individual promises to improve their collective efficiency.

Mutex locks for async functions with functionality to use keys for separate locks

Light-weight Fetch implementation transparently supporting both HTTP/1(.1) and HTTP/2

function try-catch wrapper for promises

AES crypto native module for react-native

StreamQueue pipe the queued streams one by one in order to preserve their content order.

Create a duplex stream from a readable and a writable stream.

Run promise-returning & async functions in series

FantasyLand compliant (monadic) alternative to Promises

A module for managing ES6 promise concurrency, frequency, and efficiency.

An asynchronous yieldable version of JSON.stringify and JSON.parse

Modern and scalable routing for React applications

Streaming length prefixed buffers with async iterables

An alternantive to EventEmitter using consumable streams.

Asynchronous side effects, without the nonsense

Next-generation ZeroMQ bindings for Node.js

SAX based evented streaming JSON parser in JavaScript (browser and node)