APIs

Library for creation web and websocket restful 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

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

A common tooling library used by the googleapis npm module. You probably don't want to use this directly.

Axios + standardized errors + request/response transforms.

Get callsites from the V8 stack trace API

Core istanbul API for JS code coverage

Modern Buffer API polyfill without footguns

Google APIs Client Library for Node.js

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

ES6 spec-compliant RegExp.prototype.flags shim.

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

Fast, unopinionated, minimalist web framework

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

Get the byte length of an ArrayBuffer, even in engines without a `.byteLength` method.

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

ES5 spec-compliant shim for String.prototype.trim

ES2017 spec-compliant Object.values shim.

Base reporting library for istanbul

ECMAScript spec-compliant polyfill/shim for `globalThis`

ES spec-compliant shim for ArrayBuffer.prototype.slice

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

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

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

ES proposal-spec-compliant Object.fromEntries shim.

Node.js API (Node-API)

Common API errors

Esprima-compatible implementation of the Mozilla JS Parser API

Utility functions for working with TypeScript's API. Successor to the wonderful tsutils. 🛠️️

ES2017 spec-compliant Object.entries shim.

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

Packages @jridgewell/trace-mapping and @jridgewell/gen-mapping into the familiar source-map API

Fast CSS Selectors API Engine

An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible

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

Shared TypeScript definitions for Octokit projects

A shim for the setImmediate efficient script yielding API

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

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

Provides functions for detecting if the host environment supports the WebCrypto API

Universal WHATWG Fetch API for Node, Browsers and React Native

An ESnext spec-compliant `Object.groupBy` shim/polyfill/replacement that works as far down as ES3.

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

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

Public API for OpenTelemetry

Polyfill for Metadata Reflection API

Public logs API for OpenTelemetry

An ESnext spec-compliant iterator helpers shim/polyfill/replacement that works as far down as ES3.