# React: detect unnecessary effects with ESLint

Canonical source : [React: detect unnecessary effects with ESLint](<https://sebastien.rigaux.be/en/tech-watch/links/react-detect-unnecessary-effects-with-eslint>)

This ESLint plugin flags `useEffect` patterns that unnecessarily complicate React code, pairing each anti-pattern with a specific alternative and a link to the documentation. It covers derived state, chained state updates, and effects used as event handlers, among other cases.

Its analysis considers state, props, context, refs, and dependencies to assess when an effect runs. It offers recommended and strict configurations, and also works with Oxlint.

- Selected on : 2026-11-07

- Entry updated : 2026-11-07T21:58:55+0000

- Format : Repository

- Source language : EN

- Credit : Nick van Dyke

Original resource : [React: detect unnecessary effects with ESLint](<https://github.com/nickjvandyke/eslint-plugin-react-you-might-not-need-an-effect>)

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Available versions : [Français](<https://sebastien.rigaux.be/veille/liens/react-detecter-les-effets-superflus-avec-eslint>) · [English](<https://sebastien.rigaux.be/en/tech-watch/links/react-detect-unnecessary-effects-with-eslint>)

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