50 lines
1.6 KiB
Markdown
50 lines
1.6 KiB
Markdown
# @babel/eslint-plugin
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Companion rules for `@babel/eslint-parser`. `@babel/eslint-parser` does a great job at adapting `eslint`
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for use with Babel, but it can't change the built in rules to support experimental features.
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`@babel/eslint-plugin` re-implements problematic rules so they do not give false positives or negatives.
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> Requires Node 10.9 or greater
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### Install
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```sh
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npm install @babel/eslint-plugin --save-dev
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```
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Load the plugin in your `.eslintrc.json` file:
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```json
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{
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"plugins": ["@babel/eslint-plugin"]
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}
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```
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Finally enable all the rules you would like to use (remember to disable the
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original ones as well!).
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```json
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{
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"rules": {
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"babel/camelcase": "error",
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"babel/new-cap": "error",
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"babel/no-invalid-this": "error",
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"babel/no-unused-expressions": "error",
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"babel/object-curly-spacing": "error",
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"babel/semi": "error",
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}
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}
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```
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### Rules
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Each rule corresponds to a core `eslint` rule, and has the same options.
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🛠: means it's autofixable with `--fix`.
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- `babel/camelcase: doesn't complain about optional chaining (`var foo = bar?.a_b;`)
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- `babel/new-cap`: Ignores capitalized decorators (`@Decorator`)
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- `babel/no-invalid-this`: doesn't fail when inside class properties (`class A { a = this.b; }`)
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- `babel/no-unused-expressions`: doesn't fail when using `do` expressions or [optional chaining](https://github.com/tc39/proposal-optional-chaining) (`a?.b()`).
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- `babel/object-curly-spacing`: doesn't complain about `export x from "mod";` or `export * as x from "mod";` (🛠)
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- `babel/semi`: doesn't fail when using `for await (let something of {})`. Includes class properties (🛠)
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