Salesforce JS-Dev-101

Everyone studies differently, which is why Dumpkiller offers the JS-Dev-101 exam preparation material in three formats: a printable PDF, a desktop test engine, and an online test engine. Whichever you pick, you work through the same 149 practice questions covering the Salesforce Certified JavaScript Developer - Multiple Choice syllabus.

Salesforce JS-Dev-101 Exam Overview:

Salesforce JS-Dev-101 Exam Syllabus Topics:

What Candidates Ask About the Salesforce JS-Dev-101 Exam

Can you give me an overview of the JS-Dev-101 exam?

The Salesforce Certified JavaScript Developer - Multiple Choice exam (code: JS-Dev-101) is the official Salesforce exam that leads to the Salesforce Certified JavaScript Developer I certification. It sits at the Professional level of the Salesforce certification track. It is also connected with related credentials such as Salesforce Platform Developer I, Salesforce Platform Developer II. Passing it proves to employers that your skills have been validated by Salesforce itself, which is why the JS-Dev-101 credential keeps showing up in job postings.

How many questions are in the JS-Dev-101 exam, and how long does it take?

The Salesforce Certified JavaScript Developer - Multiple Choice exam gives you 105 minutes to work through 60 (multiple choice). Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the Dumpkiller test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.

What score do I need to pass the JS-Dev-101 exam, and how much does it cost?

The passing score for the Salesforce Certified JavaScript Developer - Multiple Choice exam is 65%, and the official registration fee is $200 USD. Remember that a failed attempt means paying that fee in full again, so a timed self-assessment with Dumpkiller practice questions about a week before your exam date is a cheap way to confirm you are scoring comfortably above 65%.

Are there any prerequisites for the JS-Dev-101 exam?

According to Salesforce, the following applies: No formal prerequisites, but familiarity with JavaScript and web development is recommended.. Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://trailhead.salesforce.com/credentials/javascriptdeveloper before you register.

How do I register for the JS-Dev-101 exam?

You can book your Salesforce Certified JavaScript Developer - Multiple Choice exam through the official channels below:

• Salesforce Certification Registration
• Kryterion Webassessor (Exam Delivery)

Depending on availability in your region, the exam is delivered as Online proctored exam via Salesforce authorized testing platform (e.g., Webassessor).

What official training does Salesforce recommend for the JS-Dev-101 exam?

Salesforce lists the following training options for Salesforce Certified JavaScript Developer - Multiple Choice candidates:

• Salesforce Trailhead - JavaScript Developer I
• MDN Web Docs - JavaScript Guide

Official courses build a solid foundation, and pairing them with the 149 practice questions from Dumpkiller shows you how ready you really are before you spend money on the exam itself.

Can I try the JS-Dev-101 practice questions before buying?

Yes. Dumpkiller offers a free JS-Dev-101 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your Salesforce Certified JavaScript Developer - Multiple Choice material includes 365 days of free updates, and if your product expires after that, you can extend the update service at a 50% discount from your member zone.

What happens if I do not pass the JS-Dev-101 exam, and how is my order delivered?

If you take the corresponding JS-Dev-101 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee, subject to a few conditions: the failed exam must be the one matching your purchase; sitting the exam within 3 days of purchase does not qualify, since that leaves too little preparation time; downloading the material without actually taking the exam does not qualify; free materials and expired orders are excluded; and the candidate name must match the payer name. To apply, send a scanned copy of your enrollment slip together with your official Score Report (PDF) within 2 days after the exam, and claims are processed within 7 days. If you would rather not take a refund, you can exchange your purchase for two free products of equal value while keeping the update service on the product you originally bought. As for delivery, everything is an instant download: your products are sent to your email within one minute of payment — contact customer service if nothing arrives within 2 hours — and there is no limit on the number of computers you can install the software on.

What topics are covered in the JS-Dev-101 exam?

The official Salesforce Certified JavaScript Developer - Multiple Choice syllabus is organized into 5 main domains. The first three are Salesforce Platform Integration, Object-Oriented JavaScript, and Browser and DOM Interaction. For the full domain-by-domain breakdown, see the complete Exam Topics outline above.

Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions:

Question #1

Refer to the HTML below:
<div id="main">
<ul>
<li>Leo</li>
<li>Tony</li>
<li>Tiger</li>
</ul>
</div>
Which JavaScript statement results in changing "Leo" to "The Lion"?

A. document.querySelector('#main li:nth-child(1)').innerHTML = 'The Lion';
B. document.querySelectorAll('#main li,Leo').innerHTML = 'The Lion';
C. document.querySelectorAll('#main #Leo').innerHTML = 'The Lion';
D. document.querySelector('#main li:second-child').innerHTML = 'The Lion';

Question #2

A developer wants to use a try...catch statement to catch any error that countSheep() may throw and pass it to a handleError() function.
What is the correct implementation of the try...catch?

A. setTimeout(function() {
try {
countSheep();
} catch (e) {
handleError(e);
}
}, 1000);
B. try {
setTimeout(function() {
countSheep();
}, 1000);
} catch (e) {
handleError(e);
}
C. try {
countSheep();
} finally {
handleError(e);
}
D. try {
countSheep();
} handleError (e){
catch(e);
}

Question #3

Given the code below:
01 setTimeout(() => {
02 console.log(1);
03 }, 1100);
04 console.log(2);
05 new Promise((resolve, reject) => {
06 setTimeout(() => {
07 reject(console.log(3));
08 }, 1000);
09 }).catch(() => {
10 console.log(4);
11 });
12 console.log(5);
What is logged to the console?

A. 25341
B. 12435
C. 21435
D. 12534

Question #4

Which statement accurately describes the behavior of the async/await keywords?

A. The associated function is asynchronous, but acts like synchronous code.
B. The associated class contains some asynchronous functions.
C. The associated function sometimes returns a promise.
D. The associated function can only be called via asynchronous methods.

Question #5

Given the code below:
let numValue = 1982;
Which three code segments result in a correct conversion from number to string?

A. let strValue = '' + numValue;
B. let strValue = (String)numValue;
C. let strValue = String(numValue);
D. let strValue = numValue.toText();
E. let strValue = numValue.toString();

Solutions: