Free JavaScript-Developer-I: Salesforce Certified JavaScript Developer I Exam Questions and Answers
JavaScript-Developer-I: Salesforce Certified JavaScript Developer I is a Salesforce certification exam. This page has free practice questions for it with answers and explanations, set out the way the real exam asks them, plus a timed practice test that scores you against the pass mark.
Candidates comparing JavaScript-Developer-I: Salesforce Certified JavaScript Developer I exam dumps, ExamTopics and other practice tests use this page for the answers and explanations behind each question. Download the free PDF, then sit the timed exam simulation before booking with Salesforce.
Last updated: September 25, 2026
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Question #7
Given the code below: Function myFunction(){ A =5; Var b =1; } myFunction(); console.log(a); console.log(b); What is the expected output?
Correct answer: B
Explanation
Assigning a = 5 without a declaration creates an implicit global, so console.log(a) prints 5, while b is declared with var inside the function and is not visible outside, so the next line throws a ReferenceError.
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FAQ
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- Q1: What is the JavaScript-Developer-I: Salesforce Certified JavaScript Developer I exam?
- A: JavaScript-Developer-I: Salesforce Certified JavaScript Developer I is a Salesforce certification exam. Judging by the questions in our bank, it concentrates on console.log, const, developer, button and javascript.
- Q2: What topics does the JavaScript-Developer-I: Salesforce Certified JavaScript Developer I exam cover?
- A: Questions in our JavaScript-Developer-I: Salesforce Certified JavaScript Developer I bank cluster around console.log, const, developer, button, javascript, settimeout, HTML and line. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for JavaScript-Developer-I: Salesforce Certified JavaScript Developer I?
- A: Work through the JavaScript-Developer-I: Salesforce Certified JavaScript Developer I practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real JavaScript-Developer-I: Salesforce Certified JavaScript Developer I exam questions?
- A: They are drawn from officially released past questions and from community members who have sat JavaScript-Developer-I: Salesforce Certified JavaScript Developer I. Answers are verified and updated weekly.
- Q5: Where do I register for the JavaScript-Developer-I: Salesforce Certified JavaScript Developer I exam?
- A: Register through Salesforce directly. Exampractice is not affiliated with Salesforce and does not administer the exam.
- Q6: Is there a free JavaScript-Developer-I: Salesforce Certified JavaScript Developer I sample?
- A: Yes. Every JavaScript-Developer-I: Salesforce Certified JavaScript Developer I page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
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