Explore topic-wise MCQs in Html.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Html knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the Boolean value of “” in JavaScript?

A. true
B. on
C. off
D. false
Answer» E.
Discussion
2.

Math.random() returns _______________

A. random number between 0 and 1
B. random number between 1 and 10
C. random number between 1 and 100
D. random number between 0 and 10
Answer» B. random number between 1 and 10
Discussion
3.

Which method is not used for converting variables to number?

A. parseInt()
B. Number()
C. parseFloat()
D. valueOf()
Answer» E.
Discussion
4.

By default JavaScript displays the numbers as ___________

A. base 16
B. base 10
C. base 6
D. base 2
Answer» C. base 6
Discussion
5.

Typeof “infinity” will return ___________

A. string
B. number
C. object
D. undefined
Answer» C. object
Discussion
6.

The integers in JavaScript are precise up to ___________

A. 12 digits
B. 10 digits
C. 23 digits
D. 15 digits
Answer» E.
Discussion
7.

JavaScript numbers are stored as ______________

A. integers
B. double precision floating point
C. double
D. floating point
Answer» C. double
Discussion
8.

For converting string to array we can use ______________ method.

A. charAt()
B. charCodeAt()
C. split()
D. toLowerCase()
Answer» D. toLowerCase()
Discussion
9.

Negative positions for string do not work in ______________

A. Internet Explorer 8
B. Chrome
C. Safari
D. Opera
Answer» B. Chrome
Discussion
10.

typeof “null” in JavaScript is _______

A. number
B. string
C. object
D. undefined
Answer» D. undefined
Discussion
11.

Arrays in JavaScript are written within ____________

A. {}
B. [].
C. “”
D. ()
Answer» C. “”
Discussion
12.

Which of the following keyword stops the execution of JavaScript?

A. break
B. return
C. debugger
D. try….catch
Answer» D. try….catch
Discussion
13.

For testing we should use ________

A. document.write()
B. console.log()
C. window.alert()
D. innerHTML
Answer» B. console.log()
Discussion
14.

For displaying data in JavaScript, we can’t use ____________

A. document.write()
B. console.log()
C. innerHTML
D. document.getElementById()
Answer» E.
Discussion
15.

External scripts can’t take the tag _________

A. <script>
B. <form>
C. <h1>
D. <title>
Answer» B. <form>
Discussion