Variable isInt`Const`

isInt: (a: number) => a is Int = is

Type guard that checks if a value is an integer.

Returns true for an integer — a value with no fractional component, including values outside the safe integer range (unlike SafeInt).

Type Declaration

- (a: number): a is Int
- Parameters
  - a: number
  Returns a is Int
  true if the value is an integer, false otherwise

Example

assert.isTrue(isInt(5));

assert.isFalse(isInt(5.25));

assert.isTrue(Int.is(-10));