Node.js 18.x Type Definitions

For the impatient people using newer versions of Node.js currently unsupported by DefinitelyTyped (me)

Features

This library extends and depends on existing definitions from @types/node.

Added globals

• WHATWG fetch standard (via undici)
  • Functions: fetch
  • Classes: Request, Response, Headers, FormData, Blob[^1]
  • Types: RequestInit, BodyInit, HeadersInit, RequestInfo, BodyMixin, ResponseInit
• WHATWG DOMException
• WHATWG Events
  • Classes: Event, EventTarget
  • Interfaces: EventInit, EventListenerOptions, AddEventListenerOptions, EventListener, EventListenerObject, EventListenerOrEventListenerObject
• WHATWG Messaging (via worker_threads)
  • Classes: MessageEvent, MessagePort, MessageChannel, BroadcastChannel
  • Interfaces: MessageEventInit
• WHATWG Streams standard (via stream/web)
  • Classes:
    • ReadableStream, ReadableStreamDefaultController, ReadableStreamDefaultReader, ReadableByteStreamController, ReadableStreamBYOBReader, ReadableStreamBYOBRequest
    • WritableStream, WritableStreamDefaultController, WritableStreamDefaultWriter
    • TransformStream, TransformStreamDefaultController
    • CompressionStream, DecompressionStream
    • ByteLengthQueuingStrategy
  • Interfaces: ReadableStreamDefaultReadDoneResult, ReadableStreamDefaultReadValueResult, ReadableStreamDefaultReadResult
• WHATWG Encoding standard (via util)
  • Classes: TextEncoder, TextEncoderStream, TextDecoder, TextDecoderStream
• performance (via perf_hooks)
• Added Array.findLast() and Array.findLastIndex(), which are currently missing from TypeScript's lib.esnext.d.ts

Module extensions

• Modified: worker_threads
  • Updated MessagePort and BroadcastChannel to correctly extend EventTarget
• Modified: process
  • Added process.getActiveResourcesInfo()
  • Added process.setSourceMapsEnabled()

Installation

# with npm
npm install --save-dev @celeranis/node-current-types

# with yarn
yarn add --dev @celeranis/node-current-types

# with pnpm
pnpm add --save-dev @celeranis/node-current-types

Usage

After installation, add this to your project's tsconfig.json and/or jsconfig.json's compilerOptions:

"types": ["@celeranis/node-current-types"]