Studying the latest question types matters. ExamTorrent rebuilds its JS-Dev-101 bank around every exam change, so in 2026 your Salesforce Certified JavaScript Developer - Multiple Choice practice reflects what the test actually asks — not what it used to ask.
Salesforce JS-Dev-101 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Testing | 7% | - Unit testing with Jest - Test-driven development principles - Automated testing strategies |
| Topic 2: Browser and Events | 17% | - DOM manipulation - Browser Developer Tools - Event handling, propagation, bubbling, and capturing |
| Topic 3: Asynchronous Programming | 13% | - Event loop and asynchronous code execution - Promises and async/await - Callback patterns |
| Topic 4: Server Side JavaScript | 8% | - Node.js applications - Modules and file operations - Salesforce API integration |
| Topic 5: Variables, Types, and Collections | 23% | - Variable declaration (var, let, const, scoping, hoisting) - Type coercion and type conversion - Array manipulation (map, filter, reduce, forEach, find) - JSON parsing and stringification - String manipulation and Date objects |
| Topic 6: Debugging and Error Handling | 7% | - try-catch blocks - Logging strategies and debugging techniques |
| Topic 7: Objects, Functions, and Classes | 25% | - JavaScript modules (export, import) - Object creation, properties, and prototypal inheritance - ES6 Classes, constructors, methods, and inheritance - Higher-order functions and closures - Function declarations, expressions, and arrow functions |
JS-Dev-101 Exam Prep: Strategy, Details, and Support
The Salesforce Certified JavaScript Developer - Multiple Choice blueprint is structured around these main domains:
- Asynchronous Programming (13%)
- Server Side JavaScript (8%)
- Testing (7%)
Additional domains complete the official outline — our question bank spans the full set.
According to the latest exam information, the JS-Dev-101 exam contains 60 (plus up to 5 unscored pilot questions) questions with a 105 minutes-minute limit. Since performance on the day matters as much as preparation, timed practice under these exact conditions is time well spent.
Upon successful payment, our system automatically emails the product to your mailbox — typically within about a minute — with an instant download link on screen. If nothing arrives within two hours, check your spam folder and contact support; our after-sale staff is online 24 hours a day, 7 days a week. Updates are free for 365 days: our first-class experts watch the exam closely, compile every new key point and the latest question types into each new version, and send it to you automatically — even after you pass, you keep access to the field's newest information. A 50% renewal discount follows at the end of the period.
Currently, the JS-Dev-101 exam's passing score is 65% and the registration fee is $200 USD. Salesforce owns both figures and may update them, so verify on the official site when you book.
By treating preparation and performance as one campaign. The JS-Dev-101 bank is rebuilt around every exam change — new key points and the latest question types compiled by our first-class experts, with expert-verified answers across the Salesforce Certified JavaScript Developer - Multiple Choice objectives — so what you practice matches what you will face. Behind the content stands our service idea: customers' benefits first. Professionally trained after-sale staff answer 24/7, updates stay free for 365 days, and a written refund policy protects your investment throughout.
Salesforce specifies these prerequisites for the Salesforce Certified JavaScript Developer - Multiple Choice: Completion of the Lightning Web Components Specialist Superbadge is required to earn the full credential, though it can be completed before or after the exam..
Verify the current requirements on the official certification page.
Even a lost battle should not cost you twice. If you fail the corresponding exam within 60 days of purchase, send a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date; verified claims receive a full refund within seven days. Exclusions: exams taken within three days of purchase, candidate names that differ from the payer, and free or expired products. Prefer to regroup? Exchange your product for two others of equal value at no charge.
Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions:
A developer wrote the following code to test a sum3 function that takes in an array of numbers and returns the sum of the first three numbers in the array. The test passes:
01 let res = sum3([1, 2, 3]);
02 console.assert(res === 6);
03
04 res = sum3([1, 2, 3, 4]);
05 console.assert(res === 6);
A different developer made changes to the behavior of sum3 to instead sum all of the numbers present in the array.
Which two results occur when running the test on the updated sum3 function?
- A. The line 05 assertion fails.
- B. The line 02 assertion fails.
- C. The line 02 assertion passes.
- D. The line 05 assertion passes.
Correct Answer: A,C 🗳️
Explanation: Only visible for ExamTorrent members. You can sign-up / login (it's free).
Refer to the code below:
<html>
<body>
<div id="logo">Hello Logo!</div>
<button id="test">Click me</button>
</body>
<script>
function printMessage(event) {
console.log('This is a test message');
}
let el = document.getElementById('test');
el.addEventListener("click", printMessage, false);
</script>
</html>
Which action should be done?
- A. Add event.stopPropagation(); to printMessage function
- B. Add event.removeEventListener(); to printMessage function
- C. Add event.removeEventListener(); to window.onload event handler
- D. Add event.stopPropagation(); to window.onload event handler
Correct Answer: A 🗳️
Explanation: Only visible for ExamTorrent members. You can sign-up / login (it's free).
A developer is setting up a Node.js server and is creating a script at the root of the source code, index.js, that will start the server when executed. The developer declares a variable that needs the folder location that the code executes from.
Which global variable can be used in the script?
- A. __dirname
- B. window.location
- C. __filename
- D. this.path
Correct Answer: A 🗳️
Explanation: Only visible for ExamTorrent members. You can sign-up / login (it's free).
Corrected code:
let a = "*";
let b = "**";
// x = 3;
console.log(a);
What is displayed when the code executes?
- A. ReferenceError: a is not defined
- B. *
- C. null
- D. undefined
Correct Answer: B 🗳️
Explanation: Only visible for ExamTorrent members. You can sign-up / login (it's free).
A class was written to represent regular items and sale items. Code:
01 let regItem = new Item('Scarf', 55);
02 let saleItem = new SaleItem('Shirt', 80, .1);
03 Item.prototype.description = function() { return 'This is a ' + this.name; }
04 console.log(regItem.description());
05 console.log(saleItem.description());
06
07 SaleItem.prototype.description = function() { return 'This is a discounted ' + this.name; }
08 console.log(regItem.description());
09 console.log(saleItem.description());
What is the output?
- A. This is a Scarf
Uncaught TypeError: saleItem.description is not a function
This is a Shirt
This is a discounted Shirt - B. This is a Scarf
This is a Shirt
This is a Scarf
This is a discounted Shirt - C. This is a Scarf
This is a Shirt
This is a discounted Scarf
This is a discounted Shirt - D. This is a Scarf
Uncaught TypeError: saleItem.description is not a function
This is a Scarf
This is a discounted Shirt
Correct Answer: B 🗳️
Explanation: Only visible for ExamTorrent members. You can sign-up / login (it's free).
1059 Customer Reviews
