happy-dom | Npm Package Usage Trend

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.

Npm Package Weekly Downloads Trend

3 Years

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## Usage Trend
[![Usage Trend of happy-dom](https://npm-compare.com/img/npm-trend/THREE_YEARS/happy-dom.png)](https://npm-compare.com/happy-dom#timeRange=THREE_YEARS)

Cumulative GitHub Star Trend

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## GitHub Stars Trend
[![GitHub Stars Trend of happy-dom](https://npm-compare.com/img/github-trend/happy-dom.png)](https://npm-compare.com/happy-dom)

Stat Detail

Package	Downloads	Stars	Size	Issues	Publish	License
Package	Downloads	Stars	Size	Issues	Publish	License
happy-dom	0	4,343	8.26 MB	278	5 days ago	MIT

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happy-dom

README for happy-dom

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