fix(react): deprecate delay option

[dai-shi]

Migration guide:

Create a custom hook like the following.

function useAtomValueWithDelay<Value>(
  atom: Atom<Value>,
  options: { delay: number },
): Value {
  const { delay } = options
  const store = useStore(options)
  const [value, setValue] = useState(() => store.get(atom))
  useEffect(() => {
    const unsub = store.sub(atom, () => {
      setTimeout(() => setValue(store.get(atom)), delay)
    })
    return unsub
  }, [store, atom, delay])
  return value
}

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Project	Deployment	Actions	Updated (UTC)
jotai	Ready	Preview, Comment	Mar 24, 2026 2:21am

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npm i https://pkg.pr.new/jotai@3264

commit: 07f4f31

[github-actions]

Size Change: +1.39 kB (+1.37%)

Total Size: 103 kB

Filename	Size	Change
./dist/esm/react.mjs	1.84 kB	+192 B (+11.62%)	⚠️
./dist/react.js	1.8 kB	+232 B (+14.77%)	⚠️
./dist/system/react.development.js	2.04 kB	+206 B (+11.26%)	⚠️
./dist/system/react.production.js	1.25 kB	+258 B (+26.11%)	🚨
./dist/umd/react.development.js	1.94 kB	+232 B (+13.56%)	⚠️
./dist/umd/react.production.js	1.34 kB	+270 B (+25.33%)	🚨

ℹ️ View Unchanged

Filename	Size
./dist/babel/plugin-debug-label.js	1.06 kB
./dist/babel/plugin-react-refresh.js	1.26 kB
./dist/babel/preset.js	1.55 kB
./dist/esm/babel/plugin-debug-label.mjs	1.12 kB
./dist/esm/babel/plugin-react-refresh.mjs	1.31 kB
./dist/esm/babel/preset.mjs	1.62 kB
./dist/esm/index.mjs	62 B
./dist/esm/react/utils.mjs	746 B
./dist/esm/utils.mjs	67 B
./dist/esm/vanilla.mjs	666 B
./dist/esm/vanilla/internals.mjs	4.28 kB
./dist/esm/vanilla/utils.mjs	5.18 kB
./dist/index.js	242 B
./dist/react/utils.js	1.4 kB
./dist/system/babel/plugin-debug-label.development.js	1.22 kB
./dist/system/babel/plugin-debug-label.production.js	900 B
./dist/system/babel/plugin-react-refresh.development.js	1.41 kB
./dist/system/babel/plugin-react-refresh.production.js	1.05 kB
./dist/system/babel/preset.development.js	1.72 kB
./dist/system/babel/preset.production.js	1.29 kB
./dist/system/index.development.js	252 B
./dist/system/index.production.js	185 B
./dist/system/react/utils.development.js	859 B
./dist/system/react/utils.production.js	465 B
./dist/system/utils.development.js	257 B
./dist/system/utils.production.js	190 B
./dist/system/vanilla.development.js	736 B
./dist/system/vanilla.production.js	349 B
./dist/system/vanilla/internals.development.js	4.38 kB
./dist/system/vanilla/internals.production.js	2.77 kB
./dist/system/vanilla/utils.development.js	5.38 kB
./dist/system/vanilla/utils.production.js	3.11 kB
./dist/umd/babel/plugin-debug-label.development.js	1.2 kB
./dist/umd/babel/plugin-debug-label.production.js	973 B
./dist/umd/babel/plugin-react-refresh.development.js	1.4 kB
./dist/umd/babel/plugin-react-refresh.production.js	1.12 kB
./dist/umd/babel/preset.development.js	1.69 kB
./dist/umd/babel/preset.production.js	1.36 kB
./dist/umd/index.development.js	383 B
./dist/umd/index.production.js	327 B
./dist/umd/react/utils.development.js	1.54 kB
./dist/umd/react/utils.production.js	1.02 kB
./dist/umd/utils.development.js	395 B
./dist/umd/utils.production.js	340 B
./dist/umd/vanilla.development.js	793 B
./dist/umd/vanilla.production.js	402 B
./dist/umd/vanilla/internals.development.js	5.73 kB
./dist/umd/vanilla/internals.production.js	3.61 kB
./dist/umd/vanilla/utils.development.js	6.42 kB
./dist/umd/vanilla/utils.production.js	3.75 kB
./dist/utils.js	243 B
./dist/vanilla.js	685 B
./dist/vanilla/internals.js	5.58 kB
./dist/vanilla/utils.js	6.3 kB

_{compressed-size-action}

[github-actions]

Preview in LiveCodes

Latest commit: 07f4f31
Last updated: Mar 24, 2026 2:20am (UTC)

Playground	Link
React demo	https://livecodes.io?x=id/8ZJZB8EZG

---

See documentations for usage instructions.