Compared with the cost of training institutions, self-paced preparation with the right bank is affordable, current, and effective. GetValidTest's JS-Dev-101 materials save both your time and your money — 149+ Q&As covering the Salesforce Certified JavaScript Developer - Multiple Choice objectives, delivered instantly.
Salesforce JS-Dev-101 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer - Multiple Choice |
| Exam Number: | JS-Dev-101 |
| Available Languages: | Japanese, English |
| Real Exam Qty: | 60 scored + up to 5 unscored |
| Exam Format: | Multiple choice, Multiple select |
| Exam Price: | USD 200 |
| Related Certifications: | Salesforce Certified Developer Salesforce Certified Platform Developer I |
| Certificate Validity Period: | Does not expire; requires maintenance updates |
| Passing Score: | 65% |
| Exam Duration: | 105 minutes |
| Recommended Training: | Trailhead JavaScript Developer I Certification Prep |
| Exam Registration: | Salesforce Certification Registration |
| Sample Questions: |  |
| Exam Way: | Online proctored or onsite at authorized testing centers |
| Pre Condition: | No formal prerequisites; recommended: strong JavaScript fundamentals, ES6+ experience, web development familiarity |
| Official Syllabus URL: | https://trailheadacademy.salesforce.com/certificate/exam-javascript-dev---JS-Dev-101 |
Salesforce JS-Dev-101 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Browser and Events | 17% | - DOM selection and manipulation - Event handling, propagation, listeners - Browser APIs and developer tools |
| Testing | 7% | - Unit test structure and effectiveness - Test coverage and improvement |
| Debugging and Error Handling | 7% | - Error types and handling strategies - Console usage, breakpoints and debugging techniques |
| Asynchronous Programming | 13% | - Callbacks, promises, async/await - Event loop and execution flow |
| Server Side JavaScript | 8% | - Node.js fundamentals and core modules - Package management and CLI tools |
| Objects, Functions, and Classes | 25% | - ES6 classes, inheritance, modules, decorators - Object creation, properties, prototypes - Function types, scope, closures, arrow functions |
| Variables, Types, and Collections | 23% | - Variable declaration and scope - Strings, numbers, dates, arrays and methods - JSON parsing and manipulation - Data types, type coercion, truthy/falsy values |
Salesforce Certified JavaScript Developer - Multiple Choice Questions, Straight Answers
According to the latest exam information, the JS-Dev-101 exam contains 60 scored + up to 5 unscored questions and runs for 105 minutes minutes. Simulating that exact limit in practice builds the pacing a tough exam demands.
The Salesforce Certified JavaScript Developer - Multiple Choice blueprint centers on these domains:
- Testing (7%)
- Debugging and Error Handling (7%)
- Objects, Functions, and Classes (25%)
Further domains complete the official outline — the question bank covers every one.
Registration goes through the official channels below:
Pick a test center or online slot that suits your calendar, and book early — preparation goes smoother with a date in place.
Clear terms, no runaround. If you fail the corresponding exam within 60 days of purchase, send us a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date; verified claims are refunded in full within seven days. Exclusions: exams taken within three days of purchase, candidate names that do not match the payer, and free or expired products. Prefer to switch tracks? Exchange your product for two others of equal value at no cost.
A team of IT experts and certified trainers with rich experience in the Salesforce Certified JavaScript Developer - Multiple Choice field writes it — and keeps it honest. Every answer is expert-verified, the content is checked continuously for updates, and each new JS-Dev-101 version is emailed to you free for 365 days. Compared with training institutions, the bank is affordable and self-paced; compared with guesswork, it is systematic. Download the free demo first, and if anything goes wrong — even a simple downloading problem — 24/7 customer assistance is one message away.
Salesforce lists these official training options for candidates:
Structured training plus consistent self-practice covers both depth and exam readiness.
Salesforce states the following prerequisites for the Salesforce Certified JavaScript Developer - Multiple Choice: No formal prerequisites; recommended: strong JavaScript fundamentals, ES6+ experience, web development familiarity.
Confirm the current requirements on the official certification page before you register.
Currently, the JS-Dev-101 exam requires a passing score of 65%, with a registration fee of USD 200. Salesforce sets both figures, so verify the latest on the official site before scheduling.
Upon successful payment, our system automatically sends 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 our 24/7 customer assistance. Updates are free for 365 days: the moment a new version releases, the latest bank is sent to your email immediately, no matter when you purchased. A 50% renewal discount applies when the period ends.
Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions:
Refer to the following code (correcting the missing template literal backticks):
let codeName = 'Bond';
let sampleText = `The name is ${codeName}, Jim ${codeName}`;
A developer is trying to determine if a certain substring is part of a string.
Which three code statements return true?
- A. sampleText.substring('Jim');
- B. sampleText.includes('Jim');
- C. sampleText.includes('The', 1);
- D. sampleText.indexOf('Bond') !== -1;
- E. sampleText.includes('Jim', 4);
Correct Answer: B,D,E 🗳️
Explanation: Only visible for GetValidTest members. You can sign-up / login (it's free).
Refer to the code below:
01 <html lang="en">
02 <table onclick="console.log('Table log');">
03 <tr id="row1">
04 <td>Click me!</td>
05 </tr>
06 </table>
07 <script>
08 function printMessage(event) {
09 console.log('Row log');
10 event.stopPropagation();
11 }
12
13 let elem = document.getElementById('row1');
14 elem.addEventListener('click', printMessage, false);
15 </script>
16 </html>
Which code change should be done for the console to log the following when "Click me!" is clicked?
Row log
Table log
- A. Change line 10 to event.stopPropagation(false);
- B. Remove line 10
- C. Change line 14 to elem.addEventListener('click', printMessage, true);
- D. Remove lines 13 and 14
Correct Answer: B 🗳️
Explanation: Only visible for GetValidTest members. You can sign-up / login (it's free).
Original constructor function:
01 function Vehicle(name, price) {
02 this.name = name;
03 this.price = price;
04 }
05 Vehicle.prototype.priceInfo = function () {
06 return `Cost of the $(this.name) is $(this.price)$`;
07 }
08 var ford = new Vehicle('Ford Fiesta', '20,000');
Which class definition is correct?
- A. class Vehicle {
vehicle(name, price) {
this.name = name;
this.price = price;
}
priceInfo() {
return 'Cost of the ${this.name} is ${this.price}$';
}
} - B. class Vehicle {
constructor(name, price) {
this.name = name;
this.price = price;
}
priceInfo() {
return 'Cost of the ${this.name} is ${this.price}$';
}
} - C. class Vehicle {
constructor() {
this.name = name;
this.price = price;
}
priceInfo() {
return `Cost of the ${this.name} is ${this.price}$`;
}
} - D. class Vehicle {
constructor(name, price) {
this.name = name;
this.price = price;
}
priceInfo() {
return `Cost of the ${this.name} is ${this.price}$`;
}
}
Correct Answer: D 🗳️
Explanation: Only visible for GetValidTest members. You can sign-up / login (it's free).
Refer to the following array:
let arr = [1, 2, 3, 4, 5];
Which two lines of code result in a second array, arr2, created such that arr2 is a reference to arr?
- A. let arr2 = arr.slice(0, 5);
- B. let arr2 = arr.sort();
- C. let arr2 = Array.from(arr);
- D. let arr2 = arr;
Correct Answer: B,D 🗳️
Explanation: Only visible for GetValidTest members. You can sign-up / login (it's free).
Refer to the following code:
01 class Ship {
02 constructor(size) {
03 this.size = size;
04 }
05 }
06
07 class FishingBoat extends Ship {
08 constructor(size, capacity){
09 //Missing code
10 this.capacity = capacity;
11 }
12 displayCapacity() {
13 console.log('The boat has a capacity of ${this.capacity} people.');
14 }
15 }
16
17 let myBoat = new FishingBoat('medium', 10);
18 myBoat.displayCapacity();
Which statement should be added to line 09 for the code to display
The boat has a capacity of 10 people?
- A. ship.size = size;
- B. super.size = size;
- C. super(size);
- D. this.size = size;
Correct Answer: C 🗳️
Explanation: Only visible for GetValidTest members. You can sign-up / login (it's free).
