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Get All Salesforce Certified JavaScript Developer Exam Questions with Validated Answers
| Vendor: | Salesforce |
|---|---|
| Exam Code: | Javascript-Developer-I |
| Exam Name: | Salesforce Certified JavaScript Developer |
| Exam Questions: | 219 |
| Last Updated: | December 22, 2025 |
| Related Certifications: | Javascript Developer I |
| Exam Tags: | Expert Salesforce JavaScript programmerSalesforce DeveloperFull Stack Developer |
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A developer creates a simple webpage with an input field. When a user enters text in
the inputfield and clicks the button, the actual value of the field must be displayed in the
console.
Here is the HTML file content:
The developer wrote the javascript codebelow:
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?
A developer writes the code below to calculate the factorial of a given number
function sum(number){
return number * sum(number-1);
}
sum(3);
what is the result of executing the code.
There is a new requirement for a developer to implement a currPrice method that will return the current price of the item or sales..

What is the output when executing the code above
Refer to the following array:
Let arr = [1, 2, 3, 4, 5];
Which three options result in x evaluating as [1,2]?
Choose 3 answer
is below:
The JavaScript portion is:
01 functionpreviewFile(){
02 const preview = document.querySelector('img');
03 const file = document.querySelector('input[type=file]').files[0];
04 //line 4 code
05 reader.addEventListener(''load'', () => {
06 preview.src = reader.result;
07 },false);
08 //line 8 code
09 }
In lines 04 and 08, which code allows the user to select an image from their local
computer , and to display the image in the browser?
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