comma-dangle
Deprecated
Formatting rules now live in eslint-stylistic. @stylistic/ts/comma-dangle is the replacement for this rule.
See Deprecating Formatting Rules for more information.
Require or disallow trailing commas.
🔧
Some problems reported by this rule are automatically fixable by the --fix
ESLint command line option.
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 = {
"rules": {
// Note: you must disable the base rule as it can report incorrect errors
"comma-dangle": "off",
"@typescript-eslint/comma-dangle": "error"
}
};
Try this rule in the playground ↗
Options
See eslint/comma-dangle
options.
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,]
)