happy-dom

v15.11.7

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. For more information about how to use this package see README

Latest version published 24 days ago

License: MIT

NPM

GitHub

Package Health Score

97 / 100

security
No known security issues
popularity
Key ecosystem project
maintenance
Healthy
community
Active

Explore Similar Packages

Security

No known security issues

All security vulnerabilities belong to production dependencies of direct and indirect packages.

Security and license risk for significant versions

All Versions

Version				Vulnerabilities	License Risk
15.11.7	\|	11/2024	Popular	0 C 0 H 0 M 0 L	0 H 0 M 0 L
15.10.8	\|	11/2024		0 C 0 H 0 M 0 L	0 H 0 M 0 L
14.12.3	\|	06/2024		1 C 0 H 0 M 0 L	0 H 0 M 0 L
13.10.1	\|	03/2024		1 C 0 H 0 M 0 L	0 H 0 M 0 L
13.9.0	\|	03/2024		1 C 0 H 0 M 0 L	0 H 0 M 0 L

License

MIT

Security Policy

Yes

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Popularity

Key ecosystem project

Weekly Downloads (1,046,225)

GitHub Stars: 3.47K
Forks: 209
Contributors: 130

Direct Usage Popularity

The npm package happy-dom receives a total of 1,046,225 downloads a week. As such, we scored happy-dom popularity level to be Key ecosystem project.

Based on project statistics from the GitHub repository for the npm package happy-dom, we found that it has been starred 3,468 times.

Downloads are calculated as moving averages for a period of the last 12 months, excluding weekends and known missing data points.

Community

Active

Readme.md: Yes
Contributing.md: Yes
Code of Conduct: Yes
Contributors: 130
Funding: Yes

A good and healthy external contribution signal for happy-dom project, which invites more than one hundred open source maintainers to collaborate on the repository.

Embed Package Health Score Badge

Maintenance

Healthy

Commit Frequency

Open Issues: 213
Open PR: 6
Last Release: 24 days ago
Last Commit: 24 days ago

Further analysis of the maintenance status of happy-dom based on released npm versions cadence, the repository activity, and other data points determined that its maintenance is Healthy.

We found that happy-dom demonstrates a positive version release cadence with at least one new version released in the past 3 months.

As a healthy sign for on-going project maintenance, we found that the GitHub repository had at least 1 pull request or issue interacted with by the community.

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Package

Node.js Compatibility: >=18.0.0

Age: 5 years
Dependencies: 3 Direct
Versions: 603
Install Size: 12.2 MB
Dist-tags: 1
# of Files: 4.7K
Maintainers: 1
TS Typings: No

happy-dom has more than a single and default latest tag published for the npm package. This means, there may be other tags available for this package, such as next to indicate future releases, or stable to indicate stable releases.

Not sure how to use happy-dom?

To help you get started, we've collected the most common ways that happy-dom is being used within popular public projects.

EasyWebApp / WebCell / MobX / source / DOM-polyfill.ts View on Github

import { Window } from 'happy-dom';

const window = new Window();

for (const key of [
    'self',
    'document',
    'HTMLElement',
    'HTMLUnknownElement',
    'customElements'
]) {
    // @ts-ignore
    global[key] = window[key];
}

self.requestAnimationFrame = setTimeout;

View more ways to use 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

happy-dom dependencies

entities webidl-conversions whatwg-mimetype

happy-dom development dependencies

@types/node @vitest/ui @webref/css prettier typescript vitest

FAQs

What is happy-dom?

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web st... Visit Snyk Advisor to see a full health score report for happy-dom, including popularity, security, maintenance & community analysis.

Is happy-dom popular?

The npm package happy-dom receives a total of 1,046,225 weekly downloads. As such, happy-dom popularity was classified as a key ecosystem project. Visit the popularity section on Snyk Advisor to see the full health analysis.

Is happy-dom well maintained?

We found that happy-dom demonstrated a healthy version release cadence and project activity. It has a community of 130 open source contributors collaborating on the project. See the full package health analysis to learn more about the package maintenance status.

Is happy-dom safe to use?

The npm package happy-dom was scanned for known vulnerabilities and missing license, and no issues were found. Thus the package was deemed as safe to use. See the full health analysis review.

Last updated on 21 December-2024, at 08:27 (UTC).

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