Question

How to write an algorithm that adds the odd digits of one number to the end of a second number in JavaScript

Answer 1

function addOddDigits(n, second_n) {
    let multiply = 1, odd = 0;
 
    while (n !== 0) {
        if (n % 2 !== 0) {
            odd += (n % 10) * multiply;
            multiply *= 10;
        }
 
        n = Math.floor(n / 10);
    }
 
    return second_n * multiply + odd;
}

const n = 12734, second_n = 100;
         
console.log(addOddDigits(n, second_n));




/*
run:

100173

*/

 

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