Classes & Objects

Preview — 3 of 10 questions

Which keyword is used to define a class in JavaScript?

javascript

class Person {
  constructor(name) {
    this.name = name;
  }
}

Afunction

Bobject

Cclass

Dconstructor

How do you create an object from a class?

javascript

class Car {
  constructor(brand) {
    this.brand = brand;
  }
}

let myCar = ______;

ACar("Toyota");

BCar.new("Toyota");

Ccreate Car("Toyota");

Dnew Car("Toyota");

What is the purpose of the constructor method in a class?

javascript

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

const p = new Person("Alice", 30);
console.log(p.name); // "Alice"
console.log(p.age);  // 30

ATo define static properties

BTo create private methods

CTo call parent class methods

DTo initialize object properties

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