Attributify JSX transformer

Support valueless attributify in JSX/TSX: @unocss/transformer-attributify-jsx.

Presentation

export function Component() {
  return (
    <div text-red text-center text-5xl animate-bounce>
      unocss
    </div>
  )
}

Will be transformed to:

export function Component() {
  return (
    <div text-red="" text-center="" text-5xl="" animate-bounce="">
      unocss
    </div>
  )
}

Without this transformer, JSX treats valueless attributes as boolean attributes.

export function Component() {
  return (
    <div text-red={true} text-center={true} text-5xl={true} animate-bounce={true}>
      unocss
    </div>
  )
}

Installation

pnpm

pnpm add -D @unocss/transformer-attributify-jsx

yarn

yarn add -D @unocss/transformer-attributify-jsx

npm

npm install -D @unocss/transformer-attributify-jsx

uno.config.ts

import { defineConfig, presetAttributify } from 'unocss'
import transformerAttributifyJsx from '@unocss/transformer-attributify-jsx'

export default defineConfig({
  // ...
  presets: [
    // ...
    presetAttributify(),
  ],
  transformers: [
    transformerAttributifyJsx(), // <--
  ],
})

TIP

This preset is included in the unocss package, you can also import it from there:

import { transformerAttributifyJsx } from 'unocss'

Caveats

WARNING

The rules are almost the same as those of Attributify preset, but there are several precautions.

<div translate-x-100% /> <!-- cannot end with `%` -->

<div translate-x-[100px] /> <!-- cannot contain `[` or `]` -->

Instead, you may want to use valued attributes instead:

<div translate="x-100%" />

<div translate="x-[100px]" />

Blocklist

This transformer will only transform attributes that are valid UnoCSS utilities. You can also blocklist bypass some attributes from been transformed.

transformerAttributifyJsx({
  blocklist: [/text-[a-zA-Z]*/, 'text-5xl']
})

<div text-red text-center text-5xl animate-bounce>
  unocss
</div>

Will be compiled to:

<div text-red text-center text-5xl animate-bounce="">
  unocss
</div>