Function validateOptionalEnum

validateOptionalEnum<T extends string>(
    value: unknown,
    fieldPath: string,
    allowedValues: readonly T[],
): T | null
Validate an optional enum value.
Type Parameters
- T extends string
Parameters
- value: unknown
  The value to validate
- fieldPath: string
  Dot-notation path for error messages
- allowedValues: readonly T[]
  Array of allowed values
Returns T | null
The value or null
- Defined in src/utils/validation.ts:279