Free Salesforce Javascript-Developer-I Exam Questions

Become Salesforce Certified with updated Javascript-Developer-I exam questions and correct answers

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Total 217 Questions | Updated On: Jul 15, 2025
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Question 1

Given the code below:
const copy = JSON.stringify([ new String(' false '), new Bollean( false ), undefined ]);
What is the value of copy?


Answer: D
Question 2

Refer to HTML below:
The current status of an Order: <span id =''status''> In Progress </span>
Which JavaScript statement changes the text 'In Progress' to 'Completed' ?


Answer: C
Question 3

A developer creates a simple webpage with an input field. When a user enters text in
the input field and clicks the button, the actual value of the field must be displayed in the
console.
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?


Answer: A
Question 4

Refer to the code below:
Function changeValue(obj) {
Obj.value = obj.value/2;
}
Const objA = (value: 10);
Const objB = objA;
changeValue(objB);
Const result = objA.value;
What is the value of result after the code executes?


Answer: C
Question 5

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


Answer: C
Page:    1 / 44      
Total 217 Questions | Updated On: Jul 15, 2025
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