Higher Test Marks with Free Online JS-Dev-101 Exam Practice

Assess the CertsIQ’s updated JS-Dev-101 exam questions for free online practice of your Salesforce Certified JavaScript Developer - Multiple Choice test. Our Javascript-Developer-I JS Dev 101 dumps questions will enhance your chances of passing the Salesforce Certified Developer certification exam with higher marks.

Exam Code: JS-Dev-101
Exam Questions: 217
Salesforce Certified JavaScript Developer - Multiple Choice
Updated: 08 Dec, 2025
Question 1

Considering type coercion, what does the following expression evaluate to?True + '13' + NaN

Options :
Answer: D

Question 2

Which statement can a developer apply to increment the browser's navigation history without a page refresh?

Options :
Answer: C

Question 3

A developer creates a class that represents a blog post based on the requirement that aPost should have a body author and view count.The Code shown Below:Class Post {// Insert code hereThis.body =bodyThis.author = author;this.viewCount = viewCount;}}Which statement should be inserted in the placeholder on line 02 to allow for a variable to be setto a new instanceof a Post with the three attributes correctly populated?

Options :
Answer: C

Question 4

Refer to the code below:let o = {get js() {let city1 = String('st. Louis');let city2 = String(' New York');return {firstCity: city1.toLowerCase(),secondCity: city2.toLowerCase(),}}}What value can a developer expect when referencing o.js.secondCity?

Options :
Answer: B

Question 5

A developer creates a simple webpage with an input field. When a user enters text inthe input field and clicks the button, the actual value of the field must be displayed in theconsole.Here is the HTML file content:< input type ='' text'' value=''Hello'' name =''input'' >< button type =''button'' >Display < /button >The developer wrote the javascript code below:Const button = document.querySelector('button');button.addEvenListener('click', () => (Const input = document.querySelector('input');console.log(input.getAttribute('value'));When the user clicks the button, the output is always ''Hello''.What needs to be done make this code work as expected?

Options :
Answer: A

Viewing Page : 1 - 22
Practicing : 1 - 5 of 217 Questions

© Copyrights CertsIQ 2025. All Rights Reserved

We use cookies to ensure that we give you the best experience on our website (CertsIQ). If you continue without changing your settings, we'll assume that you are happy to receive all cookies on the CertsIQ.