Odd And Even Sum

function calculateEvenAndOddSums(num) {
    let arrOfNumbers = num.toString().split('').map(Number);
    let oddSum = arrOfNumbers.filter(a => a % 2 === 1).reduce((a, b) => a + b);
    let evenSum = arrOfNumbers.filter(a => a % 2 === 0).reduce((a, b) => a + b);

   console.log(`Odd sum = ${oddSum}, Even sum = ${evenSum}`);
}