Function isOneOf

isOneOf<T = unknown>(
    val: T,
    values: T[],
    errorOrMessage?: string | Error,
): asserts val is T
Asserts that a value is one of the provided values.
Type Parameters
- T = unknown
Parameters
- val: T
  Value to check
- values: T[]
  Array of allowed values
- OptionalerrorOrMessage: string | Error
  Error object or message to throw if the value is not one of the allowed values
Returns asserts val is T
- Defined in assert.ts:183