Hono client components package? #2771

MrAlex94 · 2024-02-09T12:03:04Z

MrAlex94
Feb 9, 2024

Hono v4.0.0 has just released with "client components". A great alternative to React, having properly designed Clerk components would be handy.

Client Components

hono/jsx was originally designed to run server-side as an alternative to template engines such as Mustache. Server-side JSX is an interesting experiment, creating a new stack to combine with HTMX and Alpine.js. But that's not all.

Now, hono/jsx runs on the client as well. We call it hono/jsx/dom or Client Components.

The exact same code as React runs with Hono's JSX.
import { useState } from 'hono/jsx'
import { render } from 'hono/jsx/dom'

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

function App() {
  return (
    <html>
      <body>
        <Counter />
      </body>
    </html>
  )
}

const root = document.getElementById('root')
render(<App />, root)
The Hooks listed below are also implemented and you can create Client Components just like in React.

useContext

useEffect

useState

useCallback

use

startTransition

useDeferredValue

useMemo

useLayoutEffect

Memo

isValidElement

Ultra-small

The hono/jsx/dom is fast and ultra-small. It has a smaller JSX runtime dedicated to the DOM in addition to the common server and client ones. Just specify hono/jsx/dom instead of hono/jsx in tsconfig.json.

"jsx": "react-jsx",
"jsxImportSource": "hono/jsx/dom"

The above counter example is 2.8KB with Brotli compression.

In comparison, React is 47.3 KB for the same thing.

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Hono client components package? #2771

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MrAlex94
Feb 9, 2024