Practice JSA-41-01 Exam Online

Question 1

What will be the output when the following code is executed:

class Car {

_brand = "";

set brand(value) {

this._brand = value;

}

get brand() {

return this._brand;

}

let car = new Car();

car.brand = "Toyota";

console.log(car.brand)

A : Toyota

B : undefined Toyota

C : null

D : undefined

Answer: A

Question 2

What line of code should be inserted into the Product class definition to add a property price to the class?

class Product {

constructor(name)

{

this.name = name;

// insert code here

}

A : price: 0;

B : this.price = 0;

C : var price = 0;

D : let price = 0;

Answer: B

Question 3

What will be the output of the following code?

const a = { x: 1 };

const b = { y: 2 };

const c = { ...a, b, z: 3 };

console.log(c);

A : { x: 1, y: 2, z: 3}

B : { y: 2 }

C : {x: 1, b: { y: 2 }, z: 3}

D : undefined

Answer: C

Question 4

What is the correct way to define an object "person" with properties "firstName", "lastName", and "age"?

A : const person = {firstName: 'Jane', lastName: 'Doe', age: 30};

B : const person = new Object('firstName' = 'Jane', 'lastName' = 'Doe', 'age' = 30);

C : const person = {'firstName': 'Jane', 'lastName': 'Doe', 'age': 30};

D : const person('firstName' = 'Jane', 'lastName' = 'Doe', 'age' = 30);

Answer: A

Question 5

The shape object can be converted to JSON format using the built-in command:

A : JSON.parse(shape);

B : JSON.stringify(shape);

C : JSON(shape);

D : shape.toJSON();

Answer: B

Name:	JSA - Certified Associate JavaScript Programmer
Exam Code:	JSA-41-01
Certification:	JavaScript
Vendor:	JS Institute
Total Questions:	160
Last Updated:	Jul 13, 2026

JS Institute JSA-41-01 Answers