Salesforce Javascript-Developer-I Exam Study Material
Salesforce Certified JavaScript Developer (JS-Dev-101)- 147 Questions & Answers
- Update Date : May 28, 2026
Succeed in Your Salesforce Javascript-Developer-I Exam with Step2Pass
Are you ready to ace your Salesforce Javascript-Developer-I certification? At Step2Pass, we provide all the essential resources to help you pass with confidence on your very first try. Our study materials are meticulously verified by industry experts to ensure they are accurate for real world scenarios and fully aligned with the actual exam. With our current content and hands on tools, we turn exam day stress into exam day success.
24/7 Customer Support
We offer anytime support to assist you at every step of your preparation journey. If you encounter any issues or have questions regarding the Javascript-Developer-I study materials, our support team is always available to help. Your success matters to us, and we prioritize delivering timely assistance and guidance whenever needed. Feel free to reach out anytime we are here to ensure a smooth and confident exam preparation experience.
Your Definitive Roadmap to Javascript-Developer-I Certification
To ensure you are fully prepared, an effective study plan should include:
- Deep Diving into Objectives: Thoroughly reviewing each exam topic to ensure no knowledge gaps.
- Active Practice: Working through the most current Javascript-Developer-I exam questions to reinforce your learning.
- Timed Simulations: Regularly taking a full mock test to build stamina and gauge your readiness.
- Targeted Revision: Focus on your weaker areas and focusing your energy where it matters most.
Latest Javascript-Developer-I Exam Questions – Available in PDF & Test Engine
We offer our preparation materials in two versatile formats: a portable PDF and an interactive test engine. The PDF is perfect for flexible, mobile study sessions, while the simulator provides a realistic mock test environment. This dual approach helps you sharpen your time management and get comfortable with the official exam layout through high quality practice questions.
Question 1
Which codestatement below correctly persists an objects in local Storage ?
A. const setLocalStorage = (storageKey, jsObject) => { window.localStorage.setItem(storageKey, JSON.stringify(jsObject)); }B. const setLocalStorage = ( jsObject) => { window.localStorage.connectObject(jsObject)); }
C. const setLocalStorage = ( jsObject) => { window.localStorage.setItem(jsObject); }
D. const setLocalStorage = (storageKey, jsObject) => { window.localStorage.persist(storageKey, jsObject); }
Question 2
A developer wants to define a function log to be used a few times on a single-fileJavaScript script.01 // Line 1 replacement02 console.log('"LOG:', logInput);03 }Which two options can correctly replace line 01 and declare the function for use?Choose 2 answers
A. function leg(logInput) {B. const log(loginInput) {
C. const log = (logInput) => {
D. function log = (logInput) {
Question 3
A developer wants to create an object from a function in the browser using the codebelow:Function Monster() { this.name =‘hello’ };Const z = Monster();What happens due to lack of the new keyword on line 02?
A. The z variable is assigned the correct object.B. The z variable is assigned the correct object but this.name remains undefined.
C. Window.name is assigned to ‘hello’ and the variable z remains undefined.
D. Window.m is assigned the correct object.
Question 4
A developer uses a parsed JSON string to work with userinformation as in the block below:01 const userInformation ={02 “ id ” : “user-01”,03 “email” : “user01@universalcontainers.demo”,04 “age” : 25Which two options access the email attribute in the object?Choose 2 answers
A. userInformation(“email”)B. userInformation.get(“email”)
C. userInformation.email
D. userInformation(email)
Question 5
Considering type coercion, what does the following expression evaluate to?True + ‘13’ + NaN
A. ‘ 113Nan ’B. 14
C. ‘ true13 ’
D. ‘ true13NaN ’