Free Salesforce JavaScript-Developer-I Practice Exam with Questions & Answers | Set: 3

Refer to code below:

function Person() {

this.firstName = ’John’;

}

Person.prototype ={

Job: x => ‘Developer’

};

const myFather = new Person();

const result=myFather.firstName+ ‘ ‘ + myFather.job();

What is the value of the result after line 10 executes?

Refer to the following code:

What is the value ofoutput on line 11?

Adeveloper has an ErrorHandler module that contains multiple functions.

What kind of export be leverages so that multiple functions can beused?

Given the following code:

What is the output of line 02?

Refer to the code below:

const car = {

price:100,

getPrice:function(){

return this.price;

}

};

const customCar = Object.create(car);

customCar.price = 70;

delete customCar.price;const result = customCar.getPrice();

Whatis the value of result after the code executes?

Referto the following code:

Which two statement could be inserted at line 17 to enable the function call on line 18?

Choose 2 answers

Given HTML below:

Which statement adds the priority = account CSS class to the universal Containers row ?

A developer has two ways to write a function:

Option A:

function Monster(){

this.growl = ()=>{

console.log('Grr!');

}

}

Option B:

function Monster(){};

Monster.prototype.growl = ()=>{

console.log('Grr!');

}

After deciding on an option, the developercreates 1000 monster objects.

How many growl methods are created with Option A and Option B?

A developer at Universal Containers is creating their new landing pagebased on HTML, CSS, and JavaScript. The website includes multiple external resources that are loaded when the page is opened.

To ensure that visitors have a good experience, a script named personalizeWebsiteContent needs to be executed when the webpage isloaded and there is no need to wait for the resources to be available.

Which statementshould be used to call personalizeWebsiteContent based on the above business requirement?

Refer of the string below:

Const str = ‘sa;esforce’=;

Which two statement result in the word 'Sale'?

Choose 2 answers