Programming Quiz Channel

class User {
    constructor(name, age) {
        this.name = name;
        this.age = age;
    }

    getProfile() {
        return Name: ${name}, Age: ${this.age}; 
    }

    isAdult() {
        return this.age > 18 ? "Yes" : false; 
    }

    updateProfile(newName, newAge) {
        if (newAge < 0) {
            throw "Age can't be negative"; 
        }
        this.name = newName ?? this.name; 
        this.age = newAge || this.age;
    }
}

const user = new User("John", 25);

console.log(user.getProfile());?2
user.updateProfile("", -5);

console.log(randomNumbers);

let fruits = ['apple', 'banana', 'orange'];

for (let i = 0; i <= fruits.length; i++) { 
    console.log(fruits[i]);
}

1
22
333
4444
55555
666666
7777777
88888888
999999999

function processArray(arr) {
    let result = [];
    
    arr.forEach(item => {
        if (item != '') { 
            result.push(item);
        } else if (typeof item === 'number') { 
            result.push(item * 2);
        }
    });

    return result;
}

let data = [1, '', 2, 3, '', 5, null, undefined, 'hello'];

console.log(processArray(data));

let arr = [1, '', 2, 3, '', 5];

function processData(data) {
    let result = data.map(item => item.value);
    return result;
}

let inputData = null;

console.log(processData(inputData));