JavaScript Mock Test 4

10%

Question 1 of 10

1. What is the JavaScript code snippet to change the class and let the stylesheet specify the details?

timestamp.className = "change";

timestamp.className = "move";

timestamp.className = "highlight";

timestamp.className = "specify";

Question 1 of 10

Question 2 of 10

2. The process by which the browser decides which objects to trigger event handlers on is ____________

Event Triggering

Event Listening

Event propagation

Event Handling

Question 2 of 10

Question 3 of 10

3. Which is the property that represents the content displayed in the window?

content

document

window

frame

Question 3 of 10

Question 4 of 10

4. Which form of event propagation handles the registered container elements?

Event Capturing

Event Propagation

Event Registration

Default Actions

Question 4 of 10

Question 5 of 10

5. The URL property belongs to which of the following object?

Event

Location

Document

Element

Question 5 of 10

Question 6 of 10

6. What is the datatype of the go() method's parameter?

Float

Integer

String

Double

Question 6 of 10

Question 7 of 10

7. What will be the output of the following JavaScript code?

function myFunction() 
{
   var x = null;
   document.getElementById("demo").innerHTML = Boolean(x);
}

True

False

Error

Undefined

Question 7 of 10

Question 8 of 10

8. What is the JavaScript code snippet to find all container elements with class "reveal"?

var elements = document.getElementsClassName("reveal");

var elements = document.getElementByClassName("reveal");

var elements = document.getElementsByClassName("reveal");

var elements = document.getElementByName("reveal");

Question 8 of 10

Question 9 of 10

9. Which is the preferred testing nowadays for scripting?

Whitebox testing

Blackbox testing

Software testing

Feature testing

Question 9 of 10

Question 10 of 10

10. What is the code snippet to go back to a history twice?

history.go(-2);

history(-2);

history.go(2);

history(2);

Question 10 of 10