#1404. Number of Steps to Reduce a Number in Binary Representation to One

var numSteps = function(s) {

    let carry = 0
    let steps = 0;

    for (let i = s.length - 1; i > 0; i--) {
        if (s.charAt(i) - '0' + carry == 1) {
            carry = 1
            steps += 2
        } else {
            steps++
        }
    }

    return steps + carry
};