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44 lines
1.3 KiB
Text
44 lines
1.3 KiB
Text
---
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description: 'Require or disallow trailing commas.'
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---
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> 🛑 This file is source code, not the primary documentation location! 🛑
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>
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> See **https://typescript-eslint.io/rules/comma-dangle** for documentation.
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## Rule Details
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This rule extends the base [`eslint/comma-dangle`](https://eslint.org/docs/rules/comma-dangle) rule.
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It adds support for TypeScript syntax.
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See the [ESLint documentation](https://eslint.org/docs/rules/comma-dangle) for more details on the `comma-dangle` rule.
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## How to Use
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```jsonc
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{
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// note you must disable the base rule as it can report incorrect errors
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"comma-dangle": "off",
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"@typescript-eslint/comma-dangle": ["error"]
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}
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```
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In addition to the options supported by the `comma-dangle` rule in ESLint core, the rule adds the following options:
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## Options
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This rule has a string option and an object option.
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- Object option:
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- `"enums"` is for trailing comma in enum. (e.g. `enum Foo = {Bar,}`)
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- `"generics"` is for trailing comma in generic. (e.g. `function foo<T,>() {}`)
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- `"tuples"` is for trailing comma in tuple. (e.g. `type Foo = [string,]`)
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- [See the other options allowed](https://eslint.org/docs/rules/comma-dangle#options)
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<sup>
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Taken with ❤️ [from ESLint core](https://github.com/eslint/eslint/blob/main/docs/rules/comma-dangle.md)
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</sup>
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