Function isNaturalNumber

isNaturalNumber(input): Validated<number>

Validate a natural number

Parameters

input: unknown
The raw input

Returns Validated<number>

Example

isNaturalNumber(1) >>
    {
      valid: true,
      parsed: 1,
    };

  isNaturalNumber(0) >>
    {
      valid: false,
      error: "Not a natural number: 0",
    };