Files
Sebastian Markbåge 73deff0d51 Refactor DOMProperty and CSSProperty (#26513)
This is a step towards getting rid of the meta programming in
DOMProperty and CSSProperty.

This moves isAttributeNameSafe and isUnitlessNumber to a separate shared
modules.

isUnitlessNumber is now a single switch instead of meta-programming.
There is a slight behavior change here in that I hard code a specific
set of vendor-prefixed attributes instead of prefixing all the unitless
properties. I based this list on what getComputedStyle returns in
current browsers. I removed Opera prefixes because they were [removed in
Opera](https://dev.opera.com/blog/css-vendor-prefixes-in-opera-12-50-snapshots/)
itself. I included the ms ones mentioned [in the original
PR](https://github.com/facebook/react/commit/5abcce534382d85887f3d33475e8e54e3b5d8457).
These shouldn't really be used anymore anyway so should be pretty safe.
Worst case, they'll fallback to the other property if you specify both.

Finally I inline the mustUseProperty special cases - which are also the
only thing that uses propertyName. These are really all controlled
components and all booleans.

I'm making a small breaking change here by treating `checked` and
`selected` specially only on the `input` and `option` tags instead of
all tags. That's because those are the only DOM nodes that actually have
those properties but we used to set them as expandos instead of
attributes before. That's why one of the tests is updated to now use
`input` instead of testing an expando on a `div` which isn't a real use
case. Interestingly this also uncovered that we update checked twice for
some reason but keeping that logic for now.

Ideally `multiple` and `muted` should move into `select` and
`audio`/`video` respectively for the same reason.

No change to the attribute-behavior fixture.
2023-03-30 14:30:57 -04:00
..

react-dom

This package serves as the entry point to the DOM and server renderers for React. It is intended to be paired with the generic React package, which is shipped as react to npm.

Installation

npm install react react-dom

Usage

In the browser

import { createRoot } from 'react-dom/client';

function App() {
  return <div>Hello World</div>;
}

const root = createRoot(document.getElementById('root'));
root.render(<App />);

On the server

import { renderToPipeableStream } from 'react-dom/server';

function App() {
  return <div>Hello World</div>;
}

function handleRequest(res) {
  // ... in your server handler ...
  const stream = renderToPipeableStream(<App />, {
    onShellReady() {
      res.statusCode = 200;
      res.setHeader('Content-type', 'text/html');
      stream.pipe(res);
    },
    // ...
  });
}

API

react-dom

See https://react.dev/reference/react-dom

react-dom/client

See https://react.dev/reference/react-dom/client

react-dom/server

See https://react.dev/reference/react-dom/server