JS.TS.COMMA.DANGLE

Require or disallow trailing comma

Rule Details

This rule extends the base eslint/comma-dangle (https://eslint.org/docs/rules/comma-dangle) rule. It adds support for TypeScript syntax.

See the ESLint documentation (https://eslint.org/docs/rules/comma-dangle) for more details on the comma-dangle rule.

How to Use

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{
  // note you must disable the base rule as it can report incorrect errors
  "comma-dangle": "off",
  "@typescript-eslint/comma-dangle": ["error"]
}

In addition to the options supported by the comma-dangle rule in ESLint core, the rule adds the following options:

Options

This rule has a string option and an object option.

  • Object option:

  • "enums" is for trailing comma in enum. (e.g. enum Foo = {Bar,})

  • "generics" is for trailing comma in generic. (e.g. function foo<T,>() {})
  • "tuples" is for trailing comma in tuple. (e.g. type Foo = [string,])

  • See the other options allowed (https://eslint.org/docs/rules/comma-dangle#options)

The content on this page is adapted from the ESLint User Guide. Copyright © OpenJS Foundation and other contributors, www.openjsf.org. All rights reserved. https://eslint.org/docs/rules/