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docs: add note about ESLint --ext for .jsx files (see eslint/eslint#1402) #3153

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ljharb merged 1 commit into from
Apr 16, 2026
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docs: add note about ESLint --ext for .jsx files (see eslint/eslint#1402) #3153

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10 changes: 10 additions & 0 deletions packages/eslint-config-airbnb-base/README.md
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Expand Up @@ -62,6 +62,16 @@ Our default export contains all of our ESLint rules, including ECMAScript 6+. It

2. Add `"extends": "airbnb-base"` to your .eslintrc.

> **Note**: ESLint only lints `.js` files by default.

If your project uses `.jsx` (or `.tsx` with TypeScript), you need to pass extensions to the CLI:

```sh
eslint . --ext .js, .jsx, .mjs
```

Without this, JSX-related rules will not apply to `.jsx` files.

### eslint-config-airbnb-base/legacy

Lints ES5 and below. Requires `eslint` and `eslint-plugin-import`.
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9 changes: 9 additions & 0 deletions packages/eslint-config-airbnb/README.md
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Expand Up @@ -58,6 +58,15 @@ If you don't need React, see [eslint-config-airbnb-base](https://npmjs.com/eslin

2. Add `"extends": "airbnb"` to your `.eslintrc`

> **Note**: ESLint only lints `.js` files by default.
If your project uses `.jsx` (or `.tsx` with TypeScript), you need to pass extensions to the CLI:

```sh
eslint . --ext .js, .jsx, .mjs
```

Without this, JSX-related rules will not apply to `.jsx` files.

### eslint-config-airbnb/hooks

This entry point enables the linting rules for React hooks (requires v16.8+). To use, add `"extends": ["airbnb", "airbnb/hooks"]` to your `.eslintrc`.
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