JavaScript - Login_ Exercise_ Basic Syntax_ Conditional statements

function login(input) {

    let userName = input.shift();
    // console.log(userName);
    let password = userName.split('').reverse().join("");
    //  console.log(password);

    let passCounter = 0;
    let currentPassword = input.shift();


    while (currentPassword !== password && passCounter <= input.length+1) {
        passCounter++;
        console.log(`Incorrect password. Try again.`);
        currentPassword = input.shift();
    }


    if (currentPassword === password) {
        console.log(`User ${userName} logged in.`);
    } else {
        console.log(`User ${userName} blocked!`);
    }




}

login(['sunny','rainy','cloudy','sunny','not sunny']);