UNPKG

happy-dom

Version:

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.

github.com/capricorn86/happy-dom

capricorn86/happy-dom

42 lines (25 loc) • 1.72 kB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
![Happy DOM Logo](https://github.com/capricorn86/happy-dom/raw/master/docs/happy-dom-logo.jpg) 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](https://github.com/capricorn86/happy-dom/wiki/) | [Getting Started](https://github.com/capricorn86/happy-dom/wiki/Getting-started) | [Setup as Test Environment](https://github.com/capricorn86/happy-dom/wiki/Setup-as-Test-Environment) | [GitHub](https://github.com/capricorn86/happy-dom/) ## Works With [Vitest](https://vitest.dev/) | [Bun](https://bun.sh) | [Jest](https://jestjs.io/) | [Testing Library](https://testing-library.com/) | [Google LitElement](https://lit.dev/) | [Vue](https://vuejs.org/) | [React](https://reactjs.org) | [Svelte](https://svelte.dev/) | [Angular](https://angular.io/) ## Module Systems [ESM](https://nodejs.org/api/esm.html#introduction) | [CommonJS](https://nodejs.org/api/modules.html#modules-commonjs-modules) ## 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](https://github.com/capricorn86/happy-dom-performance-test)