Pytania rekrutacyjne front-end developer

1. isNaN();
2. parseInt();
3. isFinite();
4. isInteger();

function printNumber(a) {
    return a;
}
 
console.log(printNumber());

const workers = [
    {
        name: 'Tomasz',
        age: 22
    },
    
    {
        name: 'Bartek',
        age: 40
    },
];
 
alert(workers.some(x => x.age > 25));

function maxValue(a, b) {
    if (a > b) {
        console.log(a);
    } else {
        console.log(b);
    }
}
 
maxValue(4, 2);
maxValue('Kuba', 9);
maxValue(true, 0);