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comma-dangle

Require or disallow trailing commas.

Attributes

  • Included in configs
    • ✅ Recommended
    • 🔒 Strict
  • Fixable
    • 🔧 Automated Fixer
    • 💡 Suggestion Fixer
  • 💭 Requires type information

Rule Details​

This rule extends the base eslint/comma-dangle rule. It adds support for TypeScript syntax.

See the ESLint documentation for more details on the comma-dangle rule.

How to Use​

.eslintrc.cjs
module.exports = {
  // Note: you must disable the base rule as it can report incorrect errors
  "comma-dangle": "off",
  "@typescript-eslint/comma-dangle": "warn"
};

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

  • "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,])

Options​

See eslint/comma-dangle options.

Taken with ❤️ from ESLint core

Resources​