Package - happy-dom

happy-dom

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.

Last updated 2 years ago by davidortner .

MIT · Repository · Bugs · Original npm · Tarball · package.json

$ cnpm install happy-dom

SYNC missed versions from official npm registry.

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

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

Current Tags

14.12.0 ... latest (2 years ago)

555 Versions

Maintainers (1)

davidortner

Downloads

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Dependencies (3)

Dev Dependencies (6)

@types/node ^16.11.7
@vitest/ui ^0.33.0
@webref/css 6.6.2
prettier ^2.6.0
typescript ^5.0.4
vitest ^0.32.4

Dependents (3)