Happy Dom
| Project Name | Stars | Downloads | Repos Using This | Packages Using This | Most Recent Commit | Total Releases | Latest Release | Open Issues | License | Language |
|---|---|---|---|---|---|---|---|---|---|---|
| Wpt | 4,502 | 8 hours ago | 2,459 | other | HTML | |||||
| Test suites for Web platform specs — including WHATWG, W3C, and others | ||||||||||
| Happy Dom | 2,458 | | 4 | 1,716 | 11 hours ago | 441 | October 27, 2023 | 135 | mit | TypeScript |
| 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. | ||||||||||
| Dom | 1,474 | a month ago | 193 | other | HTML | |||||
| DOM Standard | ||||||||||
| Eventlisteneroptions | 1,090 | 6 years ago | 8 | other | JavaScript | |||||
| An extension to the DOM event pattern to allow authors to disable support for preventDefault | ||||||||||
| Observable | 388 | 9 hours ago | 30 | other | Bikeshed | |||||
| Observable API proposal | ||||||||||
| Htmlkit | 207 | 11 | 3 years ago | 19 | October 22, 2018 | 5 | mit | HTML | ||
| An Objective-C framework for your everyday HTML needs. | ||||||||||
| Gammo | 181 | 2 years ago | 3 | October 24, 2021 | 1 | mit | Ruby | |||
| A pure Ruby HTML5-compliant parser with CSS selector and XPath 1.0 traversal | ||||||||||
| Abort Controller | 155 |  | 7,596 | 1,618 | 4 years ago | 11 | March 30, 2019 | 5 | mit | TypeScript |
| An implementation of WHATWG AbortController interface. | ||||||||||
| Purescript Web Dom | 34 | 21 | a month ago | January 25, 2023 | 10 | mit | PureScript | |||
| Type definitions and low level interface implementations for the W3C DOM spec | ||||||||||
| Innertext Spec | 14 | 7 years ago | 2 | other | HTML | |||||
| Draft specification for DOM "innerText" property | ||||||||||
About
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.
The goal of Happy DOM is to emulate enough of a web browser to be useful for testing, scraping web sites and server-side rendering.
Happy DOM focuses heavily on performance and can be used as an alternative to JSDOM.
DOM Features
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Custom Elements (Web Components)
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Shadow Root (Shadow DOM)
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Declarative Shadow DOM
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Mutation Observer
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Tree Walker
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Fetch
And much more..
Works With
Module Systems
Documentation
Read more about how to use Happy DOM in our Wiki.
Packages
This repository is a Monorepo. Each package lives under packages/<package>.
happy-dom
This package contains the core functionality of Happy DOM.
jest-environment
This package makes it possible to use Happy DOM with Jest.
global-registrator
A utility that registers Happy DOM globally, which makes it possible to use Happy DOM for testing in a Node environment.
uncaught-exception-observer
A utility for observing uncaught exceptions thrown in Happy DOM and dispatch them as events on the Happy DOM window.
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('.class') | 6.4 ms | 3.7 ms |
| querySelectorAll('[attribute]') | 4.0 ms | 1.7 ms |
| querySelectorAll('[class~="name"]') | 5.5 ms | 2.9 ms |
| querySelectorAll(':nth-child(2n+1)') | 10.4 ms | 3.8 ms |
See how the test was done here
Contributing
See Contributing Guide.
