Render HTML with JSX

html_of_jsx is a JSX transformation and a library to write HTML in OCaml, Reason and mlx.

Features

• Brings the "component model" to HTML
• Supports all of the Reason's JSX features (uppercase components, fragments, optional attributes, punning)
• but with a few improvements (lowercase components, no need to add the ppx annotation)
• No React idioms (no className, no htmlFor, no onChange, etc...)
• Integrates well with htmx
• Type-safe, validates attributes and their types (it can be better thought)
• Works with OCaml, Reason and mlx

• Minimal core API

  • JSX.render to render a JSX element to an HTML string
  • Helpers to construct nodes: JSX.string, JSX.int, JSX.float, JSX.null, JSX.list, JSX.array, JSX.unsafe
  • Advanced rendering: JSX.render_to_channel, JSX.render_streaming
• Designed to work on the server, but can be used on the client-side as well (with Melange or jsoo)

Installation

opam install html_of_jsx -y

(libraries html_of_jsx)
(preprocess (pps html_of_jsx.ppx))

Usage

let element: JSX.element = <a href="https://x.com/davesnx">
  <span> {"Click me!"} </span>
</a>;

let html: string = JSX.render(element);
/* <a href="https://x.com/davesnx"><span>Click me!</span></a> */

Check the demo/server.re file to see a full example.

Documentation

• Main docs: html_of_jsx documentation
• Getting started: setup and first render
• Core: props, children, fragments
• Rendering: string/channel/streaming APIs
• HTMX mode: -htmx attributes and extension loaders
• React compatibility: -react attribute aliases

Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.