- Exam Code: JS-Dev-101
- Exam Name: Salesforce Certified JavaScript Developer - Multiple Choice
- Updated: Oct 12, 2026
- Q & A: 149 Questions and Answers
Salesforce JS-Dev-101 actual dump : Salesforce Certified JavaScript Developer - Multiple Choice
PDF Version DemoAbout Salesforce JS-Dev-101 Exam Questions
Walking into an exam room calm is easier when you have already been there — virtually. The Actual4Dumps Desktop Test Engine recreates the Salesforce Certified JavaScript Developer - Multiple Choice testing environment, so by exam day the format, the pacing, and the pressure all feel familiar. Behind it sit 149 practice questions with verified answers.
Salesforce JS-Dev-101 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Browser and DOM Interaction | - Events and Event Handling - DOM Manipulation |
| Object-Oriented JavaScript | - Classes and Inheritance - Objects and Prototypes |
| Salesforce Platform Integration | - Lightning Web Components (LWC) Basics - Working with Salesforce Data Models |
| Asynchronous Programming | - API Calls and Data Fetching - Callbacks, Promises, and Async/Await |
| JavaScript Fundamentals | - Functions and Scope - Control Flow and Error Handling - Variables, Data Types, and Operators |
Frequently Asked Questions: Salesforce Certified JavaScript Developer - Multiple Choice Exam
Online proctored exam via Salesforce authorized testing platform (e.g., Webassessor) Register for the Salesforce Certified JavaScript Developer - Multiple Choice exam through these official channels:
With your exam date confirmed, the 149 practice questions from Actual4Dumps — delivered by email within 1 minute — turn the waiting weeks into structured preparation.
Per the official outline, the Salesforce Certified JavaScript Developer - Multiple Choice exam spans 5 domains, led by JavaScript Fundamentals, Salesforce Platform Integration, and Object-Oriented JavaScript. The complete breakdown is in the topics section above; the 149 practice questions at Actual4Dumps cover all of it.
Passing the Salesforce Certified JavaScript Developer - Multiple Choice exam requires 65%, and the registration fee is $200 USD. Since retakes are not free, a readiness check with the Actual4Dumps practice engines is a sensible step before you commit to an exam date.
The JS-Dev-101 exam is a Salesforce certification exam covering the Salesforce Certified JavaScript Developer - Multiple Choice syllabus outlined above. It contributes to these credential paths: Salesforce Platform Developer I, Salesforce Platform Developer II. In a competitive market, a Salesforce credential signals verified capability to employers — which is why candidates keep choosing it in 2026. Actual4Dumps prepares you with 149 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
Then the written refund policy applies. If you take the Salesforce Certified JavaScript Developer - Multiple Choice exam within 60 days of purchase and do not pass, Actual4Dumps refunds you in full. The policy excludes exams taken within 3 days of purchase, exams never actually taken, free materials, and expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Prefer to keep going? Exchange for two free exam products of equal value and retain your original update service. Delivery is by email within 1 minute of purchase — contact support if nothing arrives within 2 hours.
Salesforce recommends these training resources for the Salesforce Certified JavaScript Developer - Multiple Choice exam:
Pair official training with the 149 practice questions from Actual4Dumps to convert study time into exam readiness — especially effective when you are fitting preparation into fragmented hours.
Expect 60 (multiple choice) in 105 minutes on the Salesforce Certified JavaScript Developer - Multiple Choice exam. The Actual4Dumps Desktop Test Engine reproduces this environment — real timing, exam-style flow — so the actual test day feels like a rehearsal you have already done.
Everything you need in one purchase: 149 practice questions for the Salesforce Certified JavaScript Developer - Multiple Choice exam across three formats — a printable, expert-prepared PDF with instant download; a Desktop Test Engine for Windows that simulates the real exam environment with two practice modes and works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS, complete with test history and performance review. Also included: a free demo, 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
No formal prerequisites, but familiarity with JavaScript and web development is recommended. Requirements can be revised, so confirm the latest on the official Salesforce exam page before booking.
Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions:
Question #1
A developer wants to catch any error that countSheep() may throw and pass it to handleError().
Which implementation is correct?
- A. setTimeout(function() {
try {
(Answer incomplete in option list.) - B. try {
countSheep();
} handleError(e) {
catch(e);
} - C. try {
setTimeout(function() {
countSheep();
}, 1000);
}
catch (e) {
handleError(e);
} - D. try {
countSheep();
} finally {
handleError(e);
}
Correct Answer: C 🗳️
Explanation: Only visible for Actual4Dumps members. You can sign-up / login (it's free).
Question #2
Considering type coercion, what does the following expression evaluate to?
true + '13' + NaN
- A. '113NaN'
- B. 'true13NaN'
- C. 14
- D. 'true13'
Correct Answer: B 🗳️
Explanation: Only visible for Actual4Dumps members. You can sign-up / login (it's free).
Question #3
JavaScript:
01 function Tiger() {
02 this.type = 'Cat';
03 this.size = 'large';
04 }
05
06 let tony = new Tiger();
07 tony.roar = () => {
08 console.log('They\'re great!');
09 };
10
11 function Lion() {
12 this.type = 'Cat';
13 this.size = 'large';
14 }
15
16 let leo = new Lion();
17 // Insert code here
18 leo.roar();
Which two statements could be inserted at line 17 to enable line 18?
- A. Object.assign(leo, Tiger);
- B. Object.assign(leo, tony);
- C. leo.prototype.roar = () => { console.log('They\'re pretty good!'); };
- D. leo.roar = () => { console.log('They\'re pretty good!'); };
Correct Answer: B,D 🗳️
Explanation: Only visible for Actual4Dumps members. You can sign-up / login (it's free).
Question #4
Refer to the following object:
const dog = {
firstName: 'Beau',
lastName: 'Boo',
get fullName() {
return this.firstName + ' ' + this.lastName;
}
};
How can a developer access the fullName property for dog?
- A. dog.fullName()
- B. dog.fullName
- C. dog.function.fullName()
- D. dog.get.fullName
Correct Answer: B 🗳️
Explanation: Only visible for Actual4Dumps members. You can sign-up / login (it's free).
Question #5
Code:
01 const sayHello = (name) => {
02 console.log('Hello ', name);
03 };
04
05 const world = () => {
06 return 'World';
07 };
08
09 sayHello(world);
This does not print "Hello World".
What change is needed?
- A. Change line 5 to function world() {
- B. Change line 9 to sayHello(world)();
- C. Change line 2 to console.log('Hello', name());
- D. Change line 7 to }();
Correct Answer: C 🗳️
Explanation: Only visible for Actual4Dumps members. You can sign-up / login (it's free).
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