JSPM

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

Load a script asynchronously

load a script, but only once

Brings back <script> to your favorite Single Page App!

Simple function for loading script tags in the browser asynchronously

VueScriptX brings back the <script> tag to your Vue projects!

Asyncly load a script

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

functional pipelines for Java Script

React Script Tag 18, updated a five year old package that had a very well written script loader tag utility for react, updating to now use TypeScript and React 18

A higher-order React component that assists in the asynchronous loading of third party JS libraries (eg. Stripe.js)

Loads scripts cleanly and asynchronously in SPAs

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

Loading wrapper and TypeScript types for the PayPal JS SDK

Javascript build tools based on coffee-script & cake

Pace.js load progress bar for Ember apps, incl. Flash-like initial script lazy loading

Tiny async loader for modern browsers

Plugin to add various attributes to script tags injected by html-webpack-plugin

Utility to "pipe" async iterables together

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

Run multiple promise-returning & async functions with limited concurrency

Get the first fulfilled promise that satisfies the provided testing function

Read an exact number of bytes from a binary (async) iterable

Higher-order functions and common patterns for asynchronous code

Promisify a callback-style function

Fast, in memory work queue

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

Async loader for google maps api (browser, typescript)

Minimal async jobs utility library, with streams support

Runtime for Regenerator-compiled generator and async functions.

Map over promises concurrently

`Start a promise chain

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

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+

Simple async iterables for websocket client connections

A utility to retry failed async methods.

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

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

Determine if a function is a native async function.

A basic but performant promise implementation

Create a promise that can be canceled

A function that returns the normally hidden `AsyncFunction` constructor

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

Timeout a promise after a specified amount of time

Retry a promise-returning or async function

Async/await error handling support for expressjs

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

Explode async and generator functions into a state machine.

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

FantasyLand compliant (monadic) alternative to Promises

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

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

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

A promise based streaming tokenizer

Create a deferred promise

asynchronous function queue with adjustable concurrency

Promise queue with concurrency control

Environment agnostic nextTick polyfill

A tiny script to run async functions aka promises one after the other

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

Asynchronous flow control with a functional taste to it

A lightweight TypeScript/JavaScript adapter for working with Flatfile's Portal

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

Check if something is a promise

Delay a promise a specified amount of time

Promisify an event by waiting for it to be emitted

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

asynchronous function queue with adjustable concurrency

Isomorphic, functional type-checking for Javascript

Iterate over promises serially

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

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.

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

Filter promises concurrently

Run some code when the process exits

Memoize/cache function results

Distributed task scheduler and rate limiter

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

Async file and script loader that works both in the browser and in nodejs / io.js.

Lock on asynchronous code

Create handshakes for binary protocols with iterable streams

A mutex for guarding async workflows

Create sync/async APIs with usable logic

Inspect the life of handle objects in node

$(document).ready() for the 21st century

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`

Wait for a condition to be true

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

Settle an async function.

Map over promises serially

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

Compose promise-returning & async functions into a reusable pipeline

Extends Chai with assertions about promises.

A JavaScript extension package for building strong and modern applications.

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.

Throttle promise-returning & async functions

An easy way to run reliable polling without messing with setTimeout.

Compose your async functions with elegance.

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

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

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.

validate form asynchronous

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

Wait for multiple callback

Run an array of functions in series

`timers/promises` for client and server.

Take care of your `spawn()`

Modular and fast Promises implementation

Memoize promise-returning & async functions

An optionally-asynchronous forEach with an interesting interface.

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

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

Promisified setTimeout

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

Convert any object to thenable

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

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

A Node.js queue library with controllable concurrency and rate limiting

The JavaScript Task Runner

Async/await wrapper for easy error handling in js

In memory queue system prioritizing tasks

Wait for any promise to be fulfilled

Modern and scalable routing for React applications

Apply an async function to each Array element in series.

Modern and scalable routing for React applications

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

Settle promises concurrently and get their fulfillment value or rejection reason

Translate text to different languages on node.js and the browser

Wait for a specified number of promises to be fulfilled

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.

Creates a queue of sync or async functions with resolve and reject callback.

Modern and scalable routing for React applications

Modern and scalable routing for React applications

Create the powerful singleton easily

Abortable async function helpers

Map-like, concurrent promise processing for Node.js

Run a script that exports an `async` function

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

YouTube IFrame Player API abstraction.

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

Modern and scalable routing for React applications

Parser for FTP server responses

Make array iteration easy when using async/await and Promises

Modern and scalable routing for Web applications

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

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

Abstract streams to deal with the whole buffered contents.

A sane FTP client implementation for NodeJS

Resolve a path by walking parent directories.

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

Test whether a path exists on the filesystem.

Creates a value/error pair to mimic promise behavior

Read the entire contents of a file.

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

Async value container

Transform async/await to promise chains

call your callbacks in a waterfall, at speed

Add a callback to the next tick queue.

Zero-overhead asynchronous parallel/each/map function call

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

Evaluate asynchronous tasks with configurable concurrency.

Lightweight promise/generator machinery.

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

Zero-overhead asynchronous series/each/map function calls

Flush promises in tests

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

Modern and scalable routing for React applications

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

horsepower for your modules

An event emitter implementation with async support in mind

Automated browser testing for the modern web development stack.

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

Debounce promise-returning & async functions

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

A simple and non-blocking PNG encoder / decoder.

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

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

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

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

async parallellimitmethod as module.

A lightweight promise library

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

Dynamic scripts loading for modern browsers.

Caching DNS resolve

jsonp minimal client for the browser (1.4K) and Node.js

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

ES7 async-await wrapper for the csv package.

Express Error Handler for Async Functions

Simple, consistent sync or async process spawning

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

Programmatically Loads remote scripts via script tag

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

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

seriously like the best async child process library

Parse ePub electronic book files with Node.JS

Generic browser priority queue.

Asynchronous Array Utilities (for await)

Simply gzip and ungzip in Node.js with promises

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

Asynchronous iterator function for parallel processing.

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

Async hook

A Svelte action that monitors an element enters or leaves the viewport or a parent element. Performant and efficient thanks to using Intersection Observer under the hood.

co with bluebird promises

Modern and scalable routing for React applications

ES6 Promise polyfill

Test whether all promises passes a testing function

Retry a promise-returning or async function

Convert event emitters and event targets to ES async iterators

Async middleware for JavaScript and TypeScript

Better Queue for NodeJS

Cooperative multi-tasking for Javascript

zip and unzip library for node

Simple asynchronous middleware pattern

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

Asynchronous String.prototype.replace()

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

Modern and scalable routing for React applications

another simple/tiny javascript/css loader

Convert Node.js streams to streaming iterables

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.

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

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.

Modern and scalable routing for React applications