Odd and Even Sum

function solution(number) {

    let oddDigits = getOddNumbers(number);
    let evenDigits = getEvenDigits(number);

    function getOddNumbers(n) {

        let oddDigits = [];

        while (n > 0) {

            let lastDigit = n % 10;
            if (lastDigit % 2 !== 0) {
                oddDigits.push(lastDigit);
            }
            n = parseInt((n / 10));
        }

        return oddDigits;
    }

    function getEvenDigits(n) {
        let evenDigits = [];

        while (n > 0) {
            let lastDigit = n % 10;
            if (lastDigit % 2 === 0) {
                evenDigits.push(lastDigit);
            }
            n = Math.trunc((n/10));
        }
        return evenDigits;
    }

    function getSum (arr){
        let sum = 0;

        for( let number of arr){
            sum += number;
        }
        return sum;
    }

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

}
solution( 1000435);