prefer-singular-enums

Reports TypeScript enum names that look plural.

Rule details Suggestion

Enums describe one selected member at a time, so this rule expects singular names.

It catches regular plurals like Colors, acronym plurals like IDs, and several irregular plurals like People and Children. It also checks the last word in names such as UserStatuses and USER_STATUSES.

Some words that end in s are treated as singular and are allowed, including Status, Alias, Analysis, Series, and Species.

No fixer

The rule reports the enum declaration only. Rename the enum and its references with your editor or refactor tool.

Examples

Incorrect

enum Colors {
  Red,
  Blue,
}

enum People {
  Admin,
  User,
}

enum USER_STATUSES {}

Correct

enum Color {
  Red,
  Blue,
}

enum Person {
  Admin,
  User,
}

enum Status {}
enum ID {}

Related rules

prefer-pascal-case-enums Keeps enum names in a consistent casing style

prefer-enum-member Checks enum member usage instead of naming