The guide

These pages introduce justdom one idea at a time, in the order the ideas build on each other. Each one says what a part of the family is for, shows it in a few lines, and points to the API reference for every option and every rule.

1. Getting started — which packages to install for what you render.
2. Reactivity — signals, derived values and effects, and why nothing computes until it is read.
3. Rendering the DOM — elements, operators, lists, text and stylesheets, and how a tree is mounted.
4. Server rendering — the same tree in a jsdom document, and hydrating its markup in the browser.
5. Rendering a scene — the same model for a Three.js scene graph.
6. Headset sessions — the Enter button, the emulator, and what a page needs to know about the session.
7. Pointing and grabbing — rays, cursors, picking things up and carrying them.
8. DOM panels — ordinary DOM mirrored into the scene, pointed at and typed into.
9. Writing CSS for a panel — what a panel draws of the page's CSS and what it leaves out.
10. Mirrors and HTML-in-Canvas — how a mirrored panel differs from one the browser paints into a texture, and when to use each.
11. Development — hot reloading with live state, theming and outlines modes, the frame rate readout.

The demos are full apps built on these packages, and each one links to its source.