Rolldown

⚠️ Note: This plugin is experimental. Feedback is welcome in the Github repo. Please file issues in the separate repo instead of jotai repo.

jotaijs/jotai-rolldown

This plugin improves the development experience for Jotai by adding React Refresh support and adding devtools support.

Usage

Install it with:

npm install --save-dev jotai-rolldown

You can add the plugin to rolldown.config.ts:

import jotai from 'jotai-rolldown'
import { defineConfig } from 'rolldown'

export default defineConfig({
  plugins: [jotai()],
})

or you can add the plugin to vite.config.ts:

import jotai from 'jotai-rolldown'
import { defineConfig } from 'vite'

export default defineConfig({
  plugins: [jotai()],
})

Options

reactRefresh

Type: boolean Default: true (in development)

Enables React Refresh support.

This makes sure that state isn’t reset, when developing using React Refresh.

debugLabel

Type: boolean Default: true (in development)

Jotai is based on object references and not keys (like Recoil). This means there’s no identifier for atoms. To identify atoms, it’s possible to add a debugLabel to an atom, which can be found in React devtools. However, this can quickly become cumbersome to add a debugLabel to every atom. This plugin adds a debugLabel to every atom, based on its identifier.

The plugin transforms this code:

export const countAtom = atom(0)

Into:

export const countAtom = atom(0)
countAtom.debugLabel = 'countAtom'

Default exports are also handled, based on the file naming:

countAtom.ts

export default atom(0)

Which transform into:

countAtom.ts

const countAtom = atom(0)
countAtom.debugLabel = 'countAtom'
export default countAtom

atomNames

Type: string[] Default: []

Custom atom function names so that the plugins can recognize them.