Variable isUint`Const`

isUint: (a: number) => a is NonNegativeInt = is

Type guard that checks if a value is a non-negative integer.

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

Type Declaration

- (a: number): a is NonNegativeInt
- Parameters
  - a: number
  Returns a is NonNegativeInt
  true if the value is a non-negative integer, false otherwise

Example

assert.isTrue(isUint(4));

assert.isFalse(isUint(-1));

assert.isTrue(Uint.is(0));