Files
Sebastian Markbåge e3c9656d20 Ensure Performance Track are Clamped and Don't overlap (#34509)
This simplifies the logic for clamping the start times of various
phases. Instead of checking in multiple places I ensure we compute a
value for each phase that is then clamped to the next phase so they
don't overlap. If they're zero they're not printed.

I also added a name for all the anonymous labels. Those are mainly
fillers for sync work that should be quick but it helps debugging if we
can name them.

Finally the real fix is to update the clamp time which previously could
lead to overlapping entries for consecutive updates when a previous
update never finalized before the next update.
2025-09-17 10:52:02 -04:00
..
2025-09-12 12:47:40 -04:00

react

React is a JavaScript library for creating user interfaces.

The react package contains only the functionality necessary to define React components. It is typically used together with a React renderer like react-dom for the web, or react-native for the native environments.

Note: by default, React will be in development mode. The development version includes extra warnings about common mistakes, whereas the production version includes extra performance optimizations and strips all error messages. Don't forget to use the production build when deploying your application.

Usage

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

function Counter() {
  const [count, setCount] = useState(0);
  return (
    <>
      <h1>{count}</h1>
      <button onClick={() => setCount(count + 1)}>
        Increment
      </button>
    </>
  );
}

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

Documentation

See https://react.dev/

API

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