JS-Dev-101 actual exam practice material help you to clear JS-Dev-101 test. If you want get professional and Salesforce real practice, recommend you to use our JS-Dev-101 actual test practice material latest version.
Salesforce JS-Dev-101 Actual Tests : Salesforce Certified JavaScript Developer - Multiple Choice
About Best Salesforce JS-Dev-101 Exam Practice Material
The Salesforce Certified JavaScript Developer - Multiple Choice exam has a reputation for tripping up even experienced professionals. Actual4test built its JS-Dev-101 practice test around 149 expert-verified questions so you can walk in knowing what to expect.
Salesforce JS-Dev-101 Exam Overview:
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I |
| Exam Number: | JS-Dev-101 |
| Related Certifications: | Salesforce Certified JavaScript Developer I Lightning Web Components Specialist Superbadge |
| Available Languages: | English |
| Passing Score: | 65% |
| Real Exam Qty: | 60 (plus up to 5 unscored pilot questions) |
| Exam Price: | $200 USD |
| Exam Format: | Multiple Choice, Multiple Select |
| Exam Duration: | 105 minutes |
| Certificate Validity Period: | Lifetime (No renewal required) |
| Sample Questions: | Salesforce JS-Dev-101 Sample Questions |
| Exam Way: | Online (Proctored) |
| Pre Condition: | 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. |
| Official Syllabus URL: | https://trailhead.salesforce.com/en/credentials/javascriptdeveloperi |
Salesforce JS-Dev-101 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Objects, Functions, and Classes | 25% | - Object creation, properties, and prototypal inheritance - ES6 Classes, constructors, methods, and inheritance - Higher-order functions and closures - Function declarations, expressions, and arrow functions - JavaScript modules (export, import) |
| Asynchronous Programming | 13% | - Callback patterns - Event loop and asynchronous code execution - Promises and async/await |
| Variables, Types, and Collections | 23% | - Array manipulation (map, filter, reduce, forEach, find) - Variable declaration (var, let, const, scoping, hoisting) - JSON parsing and stringification - String manipulation and Date objects - Type coercion and type conversion |
| Server Side JavaScript | 8% | - Salesforce API integration - Node.js applications - Modules and file operations |
| Debugging and Error Handling | 7% | - try-catch blocks - Logging strategies and debugging techniques |
| Testing | 7% | - Automated testing strategies - Test-driven development principles - Unit testing with Jest |
| Browser and Events | 17% | - Event handling, propagation, bubbling, and capturing - Browser Developer Tools - DOM manipulation |
Everything You Want to Know About the Salesforce JS-Dev-101 Exam
The JS-Dev-101 exam (Salesforce Certified JavaScript Developer - Multiple Choice) is the official Salesforce exam that leads to the Salesforce Developers certification, a credential at the Elementary level. Related certifications include Salesforce Certified JavaScript Developer I, Lightning Web Components Specialist Superbadge. Actual4test provides 149 practice questions to help you prepare for it with confidence.
The JS-Dev-101 exam contains 60 (plus up to 5 unscored pilot questions) questions and gives you 105 minutes to finish them. Before exam day, divide the total time by the question count so you know the pace you need to keep, and flag difficult items instead of getting stuck on them. Running at least one full timed session in the Actual4test test engine is the best way to make that time pressure feel familiar.
You need 65% to pass, and the official registration fee is $200 USD. Keep in mind that a failed attempt means paying that fee in full again, so it pays to test yourself first. When your scores on the Actual4test timed practice tests stay consistently above the passing line, you are ready to book the exam.
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. Requirements can change over time, so always double-check the latest eligibility rules before you register on the official Salesforce exam page.
Yes. Actual4test offers a free JS-Dev-101 PDF demo so you can check the quality of the practice questions before purchasing. After you buy, your product comes with 365 days of free updates, and if it expires you can renew the update service at a 50% discount from your member zone.
Your purchase is protected by our 100% Money Back Guarantee. If you take the corresponding JS-Dev-101 exam within 60 days of purchase and do not pass, send us a scan of your enrollment slip and the official Score Report PDF within two days of the exam, and the full refund will be processed within seven days. The candidate name must match the payer name; exams taken within three days of purchase, free materials, and expired orders are not eligible. If you would rather not refund, you can exchange your product for two free products of equal value and keep the update service on your original purchase. Delivery itself is instant: your material is available for download and is emailed to you within one minute of payment. If nothing arrives within two hours, contact our support team. There is no limit on how many computers you may install it on.
The JS-Dev-101 syllabus is organized into 7 exam domains. Among the first three are Testing (7%), Browser and Events (17%), Variables, Types, and Collections (23%). For the complete breakdown of topics and subtopics, see the Exam Topics section above.
Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions:
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
This is a Shirt
This is a discounted Scarf
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
Uncaught TypeError: saleItem.description is not a function
This is a Scarf
This is a discounted Shirt - D. This is a Scarf
Uncaught TypeError: saleItem.description is not a function
This is a Shirt
This is a discounted Shirt
Explanation: Only visible for Actual4test members. You can sign-up / login (it's free).
A developer uses a parsed JSON string to work with user information as in the block below:
01 const userInformation = {
02 "id": "user-01",
03 "email": "[email protected]",
04 "age": 25
05 };
Which two options access the email attribute in the object?
- A. userInformation["email"]
- B. userInformation.email
- C. userInformation[email]
- D. userInformation.get("email")
Explanation: Only visible for Actual4test members. You can sign-up / login (it's free).
Considering type coercion, what does the following expression evaluate to?
true + '13' + NaN
- A. 'true13'
- B. 'true13NaN'
- C. '113NaN'
- D. 14
Explanation: Only visible for Actual4test members. You can sign-up / login (it's free).
Given the code below:
01 setCurrentUrl();
02 console.log("The current URL is: " + url);
03
04 function setCurrentUrl() {
05 url = window.location.href;
06 }
What happens when the code executes?
- A. The url variable has global scope and line 02 throws an error.
- B. The url variable has local scope and line 02 throws an error.
- C. The url variable has local scope and line 02 executes correctly.
- D. The url variable has global scope and line 02 executes correctly.
Explanation: Only visible for Actual4test members. You can sign-up / login (it's free).
A developer imports:
import printPrice from '/path/PricePrettyPrint.js';
What must be true about printPrice for this import to work?
- A. printPrice must be a named export
- B. printPrice must be the default export
- C. printPrice must be a multi export
- D. printPrice must be an all export
Explanation: Only visible for Actual4test members. You can sign-up / login (it's free).
Related Exams
Related Certifications
Over 671970+ Satisfied Customers
1117 Customer ReviewsCustomers Feedback (* Some similar or old comments have been hidden.)
Kerr -
I did well in my JS-Dev-101 exam and I would urge everyone to use these JS-Dev-101 exam dumps.
Ziv -
I tried this revolutionary JS-Dev-101 exam dumps and was stunned to see them really matching the actual exam. I got a good score today, really thank you.
Upton -
My work is busy so I choose to purchase practise questions. It only takes 2 days to prepare and pass JS-Dev-101 exam. Great!
Bernice -
Using this I got hired at a great tech company of the city. Thanks a lot for high quality JS-Dev-101 dump.
Afra -
Your JS-Dev-101 questions are exactly the same as the actual exam.
Duncan -
Passing JS-Dev-101 exam is made easy by these JS-Dev-101 training dumps. In fact, I didn’t have to read many books. That is the best thing to me. Thanks!
Chapman -
Studied JS-Dev-101 a week and passed. JS-Dev-101 is my only materials for my exam.
Wanda -
The SOFT version of JS-Dev-101 training materials saves me a lot of time. I like it!
June -
Passed JS-Dev-101,95%, and 95% exams.
Abner -
I passed the JS-Dev-101 exam though i still didn't understand some of them, anyway it is valid to pass with this JS-Dev-101 practice questions.
Lynn -
The Actual4test pdf file for JS-Dev-101 exam is amazing. Includes the best preparatory stuff for the exam. I studied from it for 3 days and passed the exam with 91% marks. Great feature by Actual4test. Highly suggested.
Samuel -
Passed! great dump btw, only 2 questions out of the total not on dump.
Thera -
I was not fully prepared but thanks JS-Dev-101 dumps, I passed my exam. Thank you guys
Eunice -
At first,I don't have much expectation for JS-Dev-101 exam,but my friend bruce urged me to review the papers.I never thought i can pass the exam at last,so miraculous! Fianlly ,I want to say JS-Dev-101 exam dumps is reliable and helpful and it is worth buying.
Joshua -
The customer support of you is very supportive and helped me in every step of my preparation.
Lennon -
Thanks Actual4test!
Thanks for your great JS-Dev-101 practice questions.
QUALITY AND VALUE
Actual4test Practice Exams are written to the highest standards of technical accuracy, using only certified subject matter experts and published authors for development - no all study materials.
Tested and Approved
We are committed to the process of vendor and third party approvals. We believe professionals and executives alike deserve the confidence of quality coverage these authorizations provide.
Easy to Pass
If you prepare for the exams using our Actual4test testing engine, It is easy to succeed for all certifications in the first attempt. You don't have to deal with all dumps or any free torrent / rapidshare all stuff.
Try Before Buy
Actual4test offers free demo of each product. You can check out the interface, question quality and usability of our practice exams before you decide to buy.
Our Clients
Here are all the actual test exam dumps for IT exams. Most people prepare for the actual exams with our test dumps to pass their exams. So it's critical to choose and actual test pdf to succeed.
RECENT DISCUSSIONS
- Exam B2B-Solution-Architect Topic 1 Question 100 Discussion
- Exam GCIH Topic 1 Question 179 Discussion
- Exam L5M5 Topic 1 Question 29 Discussion
- Exam HPE6-A86 Topic 1 Question 3 Discussion
- Exam NSE5_FSW_AD-7.6 Topic 1 Question 80 Discussion
- Exam NSE4_FGT_AD-7.6 Topic 3 Question 79 Discussion
- Exam NetSec-Pro Topic 2 Question 3 Discussion
Contact Us
From Monday to Saturday
Support: Contact now
If you have any question please leave me your email address, we will reply and send email to you in 12 hours.
Copyright © 2026 Actual4test NETWORK CO.,LIMITED. All Rights Reserved. All trademarks used are properties of their respective owners. Privacy Policy
Disclaimer:
Actual4test doesn't offer Real SANS and GIAC Exam Questions.
Oracle and Java are registered trademarks of Oracle and/or its affiliates
Actual4test material do not contain actual actual Oracle Exam Questions or material.
Actual4test doesn't offer Real Microsoft Exam Questions.
Microsoft®, Azure®, Windows®, Windows Vista®, and the Windows logo are registered trademarks of Microsoft Corporation
Actual4test Materials do not contain actual questions and answers from Cisco's Certification Exams. The brand Cisco is a registered trademark of CISCO, Inc
CFA Institute does not endorse, promote or warrant the accuracy or quality of these questions. CFA® and Chartered Financial Analyst® are registered trademarks owned by CFA Institute.
Actual4test does not offer exam dumps or questions from actual exams. We offer learning material and practice tests created by subject matter experts to assist and help learners prepare for those exams. All certification brands used on the website are owned by the respective brand owners. Actual4test does not own or claim any ownership on any of the brands.
Elroy -
Hey, dude, keep calm and use JS-Dev-101 exam dumps! I passed this exam two days ago using these JS-Dev-101 exam dumps and i studied hard. I can tell you that it works.