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JavaScript-Developer-I Exam Dumps : Salesforce Certified JavaScript Developer (JS-Dev-101)

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Salesforce JavaScript-Developer-I Exam Dumps FAQs

Q. # 1: What is the Salesforce Certified JavaScript Developer (JS-Dev-101) Exam?

The Salesforce Certified JavaScript Developer (JS-Dev-101) Exam is designed for candidates who develop front-end and/or back-end JavaScript applications for the web stack. It tests your knowledge of JavaScript fundamentals, including variables, types, collections, objects, functions, classes, browser and events, asynchronous programming, server-side JavaScript, debugging, error handling, and testing.

Q. # 2: Who should take the Salesforce JavaScript-Developer-I Exam?

The Salesforce JavaScript-Developer-I exam is ideal for developers who want to validate their skills in building and customizing Salesforce applications using JavaScript. It caters to individuals with a solid foundation in JavaScript and a basic understanding of the Salesforce platform.

Q. # 3: What topics are covered in the Salesforce Certified JavaScript Developer (JS-Dev-101) Exam?

The Salesforce Certified JavaScript Developer (JS-Dev-101) exam focuses on core JavaScript concepts and their application within Salesforce. Key areas include:

  • Variables, Types, and Collections (23%)
  • Objects, Functions, and Classes (25%)
  • Browser and Events (17%)
  • Debugging and Error Handling (7%)
  • Asynchronous Programming (13%)
  • Server Side JavaScript (8%)
  • Testing (7%)

Q. # 4: How many questions are on the Salesforce JavaScript-Developer-I Exam?

The Salesforce JavaScript-Developer-I exam consists of 60 multiple-choice questions.

Q. # 5: How long is the Salesforce JavaScript-Developer-I Exam?

The Salesforce JavaScript-Developer-I exam duration is 2 hours.

Q. # 6: What is the passing score for the Salesforce JavaScript-Developer-I Exam?

The passing score for the Salesforce JavaScript-Developer-I exam is 65%.

Q. # 7: What is the difference between Salesforce JavaScript-Developer-I and OmniStudio-Developer Exams?

The Salesforce JavaScript-Developer-I and OmniStudio-Developer exams cater to different aspects of development within the Salesforce ecosystem. Here’s a concise comparison:

  • Salesforce JavaScript-Developer-I Exam: The Salesforce JavaScript-Developer-I Exam centers on general JavaScript development skills applicable to both front-end and back-end applications. It covers fundamental JavaScript topics, including variables, types, functions, and asynchronous programming.
  • Salesforce OmniStudio-Developer Exam: The Salesforce OmniStudio-Developer Exam focuses on developing cloud applications using Salesforce's OmniStudio tools. This includes creating custom applications and solutions within the Salesforce platform, making it highly specialized for OmniStudio users.

Q. # 8: How can CertsTopics help me prepare for the Salesforce Certified JavaScript Developer (JS-Dev-101) Exam?

CertsTopics offers comprehensive study materials, including JavaScript-Developer-I PDFs, a testing engine, and detailed questions and answers, all tailored for the Salesforce Certified JavaScript Developer (JS-Dev-101) exam.

Q. # 9: Does CertsTopics offer a refund policy if I fail the Salesforce Certified JavaScript Developer (JS-Dev-101) Exam?

Yes, CertsTopics provides a success guarantee, and eligible candidates can request a refund or additional JavaScript-Developer-I study materials in the unlikely event of failure.

Q. # 10: Can I find customer reviews for CertsTopics JavaScript-Developer-I practice exam materials?

Yes, you can find customer reviews and testimonials for CertsTopics JavaScript-Developer-I practice exam materials on our website. Feedback from previous users can help you gauge the effectiveness and quality of JavaScript-Developer-I questions and answers.

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Salesforce Certified JavaScript Developer (JS-Dev-101) Questions and Answers

Get Free JavaScript-Developer-I Questions and Answers
Question 1

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();

What is the value of result after the code executes?

Options:

A.

100

B.

undefined

C.

null

D.

70

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Question 2

developer creates a new web server that uses Node.js. It imports a server library that

uses events and callbacks for handling server functionality.

The server library is imported with require and is made available to the code by a

variable named server. The developer wants to log any issues that the server has while booting

up.

Given the code and the information the developer has, which code logs an error at boost

with an event?

Options:

A.

Server.catch ((server) => {

console.log(‘ERROR’, error);

});

B.

Server.error ((server) => {

console.log(‘ERROR’, error);

});

C.

Server.on (‘error’, (error) => {

console.log(‘ERROR’, error);

});

D.

Try{

server.start();

} catch(error) {

console.log(‘ERROR’, error);

}

Question 3

A developer wants to iterate through an array of objects and count the objects and count

the objects whose property value, name, starts with the letter N.

Const arrObj = [{“name” : “Zach”} , {“name” : “Kate”},{“name” : “Alise”},{“name” : “Bob”},{“name” :

“Natham”},{“name” : “nathaniel”}

Refer to the code snippet below:

01 arrObj.reduce(( acc, curr) => {

02 //missing line 02

02 //missing line 03

04 ). 0);

Which missing lines 02 and 03 return the correct count?

Options:

A.

Const sum = curr.startsWith(‘N’) ? 1: 0;

Return acc +sum

B.

Const sum = curr.name.startsWith(‘N’) ? 1: 0;

Return acc +sum

C.

Const sum = curr.startsWIth(‘N’) ? 1: 0;

Return curr+ sum

D.

Const sum = curr.name.startsWIth(‘N’) ? 1: 0;

Return curr+ sum

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