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Question 1

Which three actions can be using the JavaScript browser console?

Choose 3 answers:

Options :

A : View and change DOM the page.

B : Display a report showing the performance of a page.

C : Run code that is not related to page.

D : view , change, and debug the JavaScript code of the page.

E : View and change security cookies.

Answer: A,C,D

Question 2

A developer creates a class that represents a blog post based on the requirement that a

Post should have a body author and view count.

The Code shown Below:

Class Post {

// Insert code here

This.body =body

This.author = author;

this.viewCount = viewCount;

}

Which statement should be inserted in the placeholder on line 02 to allow for a variable to be set

to a new instanceof a Post with the three attributes correctly populated?

Options :

A : super (body, author, viewCount) {

B : Function Post (body, author, viewCount) {

C : constructor (body, author, viewCount) {

D : constructor() {

Answer: C

Question 3

Refer to the following code:

class Vehicle{

constructor(plate){

this.plate = plate;

}

class Truck extends Vehicle{

constructor(plate, weight){

//Missing code

this.weight = weight;

}

displayWeight(){

console.log(`The truck ${this.plate} has a weight of ${this.weight}lb.`);

}

}let myTruck = new Truck('123Ab',5000);

myTruck.displayWeight();

Which statement should be added to missing code for the code to display 'The truck 123AB has a

weight of 5000lb.

Options :

A : super(plate)

B : super.plate = plate

C : Vehicle.plate = plate

D : this.plate = plate

Answer: A

Question 4

Refer to the code below:

Function changeValue(obj) {

Obj.value = obj.value/2;

}

Const objA = (value: 10);

Const objB = objA;

changeValue(objB);

Const result = objA.value;

What is the value of result after the code executes?

Options :

A : 10

B : Nan

C : 5

D : Undefined

Answer: C

Question 5

Refer to the expression below:

Let x = ('1' + 2) == (6 * 2);

How should this expression be modified to ensure that evaluates to false?

Options :

A : Let x = ('1' + ' 2') == ( 6 * 2);

B : Let x = ('1' + 2) == ( 6 * 2);

C : Let x = (1 + 2) == ( '6' / 2);

D : Let x = (1 + 2 ) == ( 6 / 2);

Answer: B