Practice JSA-41-01 Exam Online

Question 1

What will be the value of x after the following code is executed?

let x = 10;

function add5(num) {

num += 5;

return num;

}

x = add5(x);

A : None of the Above

B : 10

C : 15

D : 5

Answer: C

Question 2

What will appear on the console after executing the following code?

let car = { model: "Tesla", year: 2022 };

let vehicle = {...car, color: "red"};

car.year = 2021;

console.log(`${vehicle.model} ${vehicle.year} ${vehicle.color}`);

A : Tesla 2021 red

B : Tesla 2022 red

C : Tesla 2021 blue

D : Tesla 2022 black

Answer: B

Question 3

What is the correct output of the following code:

var obj = {

value: 10

};

var foo = function() {

console.log(this.value);

};

var bar = function() {

console.log(this.value);

};

var boundFoo = foo.call(obj);

var boundBar = bar.bind(obj)();

console.log(boundFoo === boundBar);

A : 10 10 false

B : 10 undefined false

C : 10 10 true

D : undefined 10 false

Answer: C

Question 4

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 5

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

Name:	JSA - Certified Associate JavaScript Programmer
Exam Code:	JSA-41-01
Certification:	JavaScript
Vendor:	JS Institute
Total Questions:	160
Last Updated:	Apr 22, 2024

JS Institute JSA-41-01