Variable isNegativeInt`Const`

isNegativeInt: (a: number) => a is NegativeInt = is

Checks if a number is a NegativeInt (a negative integer <= -1).

Type Declaration

- (a: number): a is NegativeInt
- Parameters
  - a: number
  Returns a is NegativeInt
  true if the value is a NegativeInt, false otherwise.