Cat years, Dog years

/*

I have a cat and a dog.

I got them at the same time as kitten/puppy. That was humanYears years ago.

Return their respective ages now as [humanYears,catYears,dogYears]

NOTES:

humanYears >= 1
humanYears are whole numbers only
Cat Years
15 cat years for first year
+9 cat years for second year
+4 cat years for each year after that
Dog Years
15 dog years for first year
+9 dog years for second year
+5 dog years for each year after that


*/


export function humanYearsCatYearsDogYears(humanYears: number): [number, number, number] {

  return [humanYears,
          humanYears > 1 ? 24 + (humanYears - 2 ) * 4 : 15,
          humanYears > 1 ? 24 + (humanYears - 2 ) * 5 : 15];
}