Détail du package

happy-dom

capricorn8610.5mMIT20.0.10

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.

jsdom, dom, browser, custom

readme

Happy DOM Logo

A JavaScript implementation of a web browser without its graphical user interface.

DOM Features

  • Custom Elements (Web Components)

  • Declarative Shadow DOM

  • Mutation Observer

  • Tree Walker

  • Fetch API

And much more..

Documentation

Documentation | Getting Started | Setup as Test Environment | GitHub

Works With

Vitest | Bun | Jest | Testing Library | Google LitElement | Vue | React | Svelte | Angular

Module Systems

ESM | CommonJS

Performance

Operation JSDOM Happy DOM
Import / Require 333 ms 45 ms
Parse HTML 256 ms 26 ms
Serialize HTML 65 ms 8 ms
Render custom element 214 ms 19 ms
querySelectorAll('tagname') 4.9 ms 0.7 ms
querySelectorAll(':nth-child(2n+1)') 10.4 ms 3.8 ms

See how the test was done here