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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:
Vendor:
Questions:
219
Last Updated:
Aug 26, 2025
Exam Status:
Stable
Salesforce JavaScript-Developer-I

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

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

Question 1

A test has a dependency on database.query. During the test the dependency is replaced

with an object called database with the method, query, that returns an array. The

developer needs to verify how many times the method was called and the arguments

used each time.

Which two test approaches describe the requirement?

Choose 2 answers

Options:

A.

Integration

B.

Black box

C.

White box

D.

Mocking

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Question 2

A developer is wondering whether to use, Promise.then or Promise.catch, especially

when a Promise throws an error?

Which two promises are rejected?

Which 2 are correct?

Options:

A.

Promise.reject(‘cool error here’).then(error => console.error(error));

B.

Promise.reject(‘cool error here’).catch(error => console.error(error));

C.

New Promise((resolve, reject) => (throw ‘cool error here’}).catch(error =>

console.error(error)) ;

D.

New Promise(() => (throw ‘cool error here’}).then(null, error => console.error(error)));

Question 3

developer publishes a new version of a package with new features that do not break

backward compatibility. The previous version number was 1.1.3.

Following semantic versioning format, what should the new package version number

be?

Options:

A.

2.0.0

B.

1.2.3

C.

1.1.4

D.

1.2.0