Salesforce Certified JavaScript Developer I Exam Questions
Salesforce Certified JavaScript Developer I (Page 22 )

Given the following code:
Let x =null;
console.log(typeof x);
What is the output of the line 02?

Which function should a developer use to repeatedly execute code at a fixed interval ?

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?

Given HTML below:
<div>
<div id ="row-uc"> UniversalContainer</div>
<div id ="row-aa">Applied Shipping</div>
<div id ="row-bt"> Burlington Textiles </div>
</div>
Which statement adds the priority = account CSS class to the universal Containers row ?

GIven a value, which three options can a developer use to detect if thevalue is NaN? Choose 3 answers !