Which one is correct for Javascript Comments?
a) // Javascript Comment
b) / Javascript Comment c) <!-- Javascript Comment--> d) /* Javascript Comment */

In Javascript, Which one of the following is used for Single line comment?

Let car;
document.getElementById("demo").innerHTML = car
What will be the result in browser?

Variables defined with ....... cannot be Redeclared , Reassigned and have Block scope.

In Javascript, If you want your code to run in older browser, you must use .........

The .......... keyword is used in all JavaScript code from 1995 to 2015.

In HTML , Which target attribute's value is used to open the document in the full body of the window ?

In HTML, which attribute is used for:

When the link is clicked, the page will scroll down or up to the location with the bookmark.

JavaScript objects are containers for named values called ...............

.............. are actions that can be performed on objects.

In Javascript, 'this' is a .........

In JavaScript, The escape caharacter starts from ..........

Comparing two JavaScript objects always returns ........

How do you display a border like this:

The top border = 10 pixels The bottom border = 5 pixels The left border = 20 pixels The right border = 1pixel ?