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Salesforce JavaScript-Developer-I Exam With Confidence Using Practice Dumps

Exam Code:
JavaScript-Developer-I
Exam Name:
Salesforce Certified JavaScript Developer (JS-Dev-101)
Certification:
Salesforce Developer
Vendor:
Salesforce
Questions:
147
Last Updated:
Aug 24, 2026
Exam Status:
Stable
Salesforce JavaScript-Developer-I

JavaScript-Developer-I: Salesforce Developer Exam 2025 Study Guide Pdf and Test Engine

Are you worried about passing the Salesforce JavaScript-Developer-I (Salesforce Certified JavaScript Developer (JS-Dev-101)) exam? Download the most recent Salesforce JavaScript-Developer-I braindumps with answers that are 100% real. After downloading the Salesforce JavaScript-Developer-I exam dumps training , you can receive 99 days of free updates, making this website one of the best options to save additional money. In order to help you prepare for the Salesforce JavaScript-Developer-I exam questions and verified answers by IT certified experts, CertsTopics has put together a complete collection of dumps questions and answers. To help you prepare and pass the Salesforce JavaScript-Developer-I exam on your first attempt, we have compiled actual exam questions and their answers. 

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

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Question 1

A 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.

Which code logs an error at boot time with an event?

Options:

A.

server.error((error) = > {

console.log( ' ERROR ' , error);

});

B.

server.catch((error) = > {

console.log( ' ERROR ' , error);

});

C.

try {

server.start();

} catch(error) {

console.log( ' ERROR ' , error);

}

D.

server.on( ' error ' , (error) = > {

console.log( ' ERROR ' , error);

});

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Question 2

A team at Universal Containers works on a big project and uses Yarn to deal with the project’s dependencies. A developer added a dependency to manipulate dates and pushed the updates to the remote repository. The rest of the team complains that the dependency does not get downloaded when they execute yarn.

What could be the reason for this?

Options:

A.

The developer missed the option --add when adding the dependency.

B.

The developer added the dependency as a dev dependency, and NODE_ENV is set to production.

C.

The developer added the dependency as a dev dependency, and YARN_ENV is set to production.

D.

The developer missed the option --save when adding the dependency.

Question 3

Refer to the code below (assuming Promise.race is intended):

let cat3 = new Promise(resolve = >

setTimeout(resolve, 3000, " Cat 3 completes " )

);

Promise.race([cat1, cat2, cat3])

.then(value = > {

let result = `${value} the race.`;

})

.catch(err = > {

console.log( " Race is cancelled: " , err);

});

(Assuming cat1 and cat2 are similar to earlier examples: cat2 resolves fastest.)

What is the value of result when Promise.race executes?

Options:

A.

Car 2 completed the race.

B.

Car 1 crashed on the race.

C.

Race is cancelled.

D.

Car 3 completed the race.

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