# 1903. Largest Odd Number in String

You are given a string num, representing a large integer. Return the largest-valued odd integer (as a string) that is a non-empty substring of num, or an empty string "" if no odd integer exists.

A substring is a contiguous sequence of characters within a string.

var largestOddNumber = function (num) {
    for (let i = num.length - 1; i >= 0; i--) {
        if (Number(num[i]) % 2 === 1) {
            return num.slice(0,i+1)
        }
    }
    return "";
};