APIs

Safer Node.js Buffer API

An implementation of the WHATWG URL Standard's URL API and parsing machinery

Node.js Buffer API, for the browser

Recursive version of fs.readdir with streaming API.

A light-weight module that brings Fetch API to node.js

Get callsites from the V8 stack trace API

Modern Buffer API polyfill without footguns

ES6 spec-compliant Object.assign shim. From https://github.com/es-shims/es6-shim

Core istanbul API for JS code coverage

Fast, unopinionated, minimalist web framework

ES6 spec-compliant RegExp.prototype.flags shim.

> DEPRECATED: Use `v8` APIs directly: https://nodejs.org/api/v8.html#serialization-api

Common API errors

**Note:** More details on user side API can be found in [Jest documentation](https://jestjs.io/docs/mock-function-api).

ES2017 spec-compliant Object.values shim.

Base reporting library for istanbul

An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.

Load node modules according to tsconfig paths, in run-time or via API.

An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.

A shim for the setImmediate efficient script yielding API

ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.

Fast CSS Selectors API Engine

ES2017 spec-compliant Object.entries shim.

Esprima-compatible implementation of the Mozilla JS Parser API

ES2015-compliant shim for Object.is - differentiates between -0 and +0

An ES2015 spec-compliant `Function.prototype.name` shim

ES proposal-spec-compliant Object.fromEntries shim.

Convenience wrapper for ReadableStream, with an API lifted from "from" and "through2"

Node's domain module for the web browser. This is merely an evented try...catch with the same API as node, nothing more.

An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.

SockJS-node is a server counterpart of SockJS-client a JavaScript library that provides a WebSocket-like object in the browser. SockJS gives you a coherent, cross-browser, Javascript API which creates a low latency, full duplex, cross-domain communication

2KB immutable date time library alternative to Moment.js with the same modern API

Provides a fallback for non-existing directories so that the HTML 5 history API can be used.

tiny modular DOM lib for ie9+

request the caniuse data to check browsers compatibilities

Universal WHATWG Fetch API for Node, Browsers and React Native

In-memory file-system with Node's fs API.

AWS SDK for JavaScript

Distribute processing tasks to child processes with an über-simple API and baked-in durability & custom concurrency options.

Let your JS API users either give you a callback or receive a promise

Node.js API (Node-API)

ES spec-compliant shim for Object.hasOwn

Implements https://w3c.github.io/accname/

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

Shared TypeScript definitions for Octokit projects

Core Storybook API & Context

fs.readdir with sync, async, and streaming APIs + filtering, recursion, absolute paths, etc.

Fetch-based http client for use with npm registry APIs

Google APIs Authentication Client Library for Node.js

A simple common HTTP client specifically for Google APIs and services.