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Salesforce JavaScript-Developer-I exam is an essential certification for developers who want to demonstrate their skills and knowledge of building custom applications on the Salesforce platform using JavaScript. Salesforce Certified JavaScript Developer (JS-Dev-101) certification can open up new opportunities for developers and help them showcase their expertise to potential employers and clients. With its comprehensive coverage of the Salesforce platform and its related tools, the exam is a must-have for any developer looking to excel in their career.

Salesforce JavaScript-Developer-I Certification Exam is designed to test the skills and knowledge of individuals who work with Salesforce’s Lightning Web Components (LWC) and Aura Components. JavaScript-Developer-I exam is intended for developers who have experience building custom applications on the Salesforce platform using JavaScript. Salesforce Certified JavaScript Developer (JS-Dev-101) certification demonstrates the ability to design, develop, and deploy scalable and maintainable custom applications that meet the requirements of businesses and organizations.

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Salesforce Certified JavaScript Developer I certification exam consists of 60 multiple-choice questions that must be completed within 105 minutes. JavaScript-Developer-I Exam covers a range of topics, including Lightning Data Service, Apex, JavaScript, and Lightning Web Components. To prepare for the exam, Salesforce recommends taking the Building Lightning Components with JavaScript course, which covers the fundamentals of building custom Lightning components using JavaScript. Additionally, Salesforce offers Trailhead, a free online learning platform that provides hands-on experience with building custom applications on the Salesforce platform.

Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q94-Q99):

NEW QUESTION # 94
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?

A. Server.on ('error', (error) => {
console.log('ERROR', error);
});
B. Try{
server.start();
} catch(error) {
C. Server.error ((server) => {
console.log('ERROR', error);
});
D. Server.catch ((server) => {
console.log('ERROR', error);
});

Answer: A

Explanation:
console.log('ERROR', error);
}

NEW QUESTION # 95
Refer to the code below:

What is the value of foobDienu1 after the code executes?

A. {'Garlic bread'}
B. {'Garlic bread', Pizza' , Burger' , French fries'}
C. {'Pizza' , Burger' , French fries '}
D. {'Pizza' , Burger' , French fries ' , garlic bread; }

Answer: D

NEW QUESTION # 96
What are two unique features of functions defined with a fat arrow as compared to normal function definition?
Choose 2 answers

A. The function receives an argument that is always in scope, called parentThis, which is the enclosing lexical scope.
B. The function uses the this from the enclosing scope.
C. If the function has a single expression in the function body, the expression will be evaluated and implicit returned.
D. The function generated its own this making it useful for separating the function's scope from its enclosing scope.

Answer: C,D

NEW QUESTION # 97
Refer to the following code:

What is the output of line 11?

A. [1, 2]
B. [''bar'' , ''foo'']
C. ['foo'', ''bar'']
D. [''foo:1'', ''bar:2'']

Answer: C

NEW QUESTION # 98
Refer to the code below:

What is result of the code block?

A. The console logs 'flag' and another flag',
B. The console logs flag' and then an error is thrown.
C. The console logs only 'flag',
D. An error is thrown.

Answer: B

NEW QUESTION # 99
......

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q94-Q99):

Learn Time Management Skill With Salesforce JavaScript-Developer-I Practice Tests