02. Password

function Password(input) {
    let user = input[0];
    let pass = input[1];
    let index = 2;

    while (input[index++] !== pass){
    }

    console.log(`Welcome ${user}!`);
}

Решение с фор цикъл:

function password(input) {
    let user = input[0];
    let pass = input[1];

    for (let i = 2; i <= Number.MAX_VALUE; i++) {
        if (pass === input[i]) {
            console.log(`Welcome ${user}!`);
            return;
        }
    }
}