JavaScript Quiz Online Test Mcqs Questions with Answers Objective Type PDF

Question 1 of 25

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1. Which is the correct order of precedence of Arithmetic operators?

+*-/

+/*-

+-*/

*/+-

Question 1 of 25

Question 2 of 25

2. Which of the following are capabilities of functions in JavaScript?

Accept parameters

Return a value

None of the above

Accept parameters and Return a value

Question 2 of 25

Question 3 of 25

3. Which of the following is not a valid JavaScript variable name?

5myvalue

myvalue5

None of the above

myvalue

Question 3 of 25

Question 4 of 25

4. _____ JavaScript statements embedded in an HTML page can respond to user events such as mouse-clicks, form input, and page navigation?

Native

Server-side

Local

Client-side

Question 4 of 25

Question 5 of 25

5. When a user views a page containing a JavaScript program, which machine actually executes the script?

A central machine deep within Netscape's corporate offices

The User's machine running a Web browser

None of the above

The Web server

Question 5 of 25

Question 6 of 25

6. The __ operator determines the type of a given object?

delete

void

instanceof

typeop

Question 6 of 25

Question 7 of 25

7. __________ JavaScript is also called server-side JavaScript?

Microsoft

Navigator

Native

LiveWire

Question 7 of 25

Question 8 of 25

8. Which of the following is not a valid JavaScript variable name?

2names

None of the above

_first_and_last_names

FirstAndLast

Question 8 of 25

Question 9 of 25

9. What is the alternate name for Java script?

Coffee Script

ECMAScript

LimeScript

ECMScript

Question 9 of 25

Question 10 of 25

10. ______ JavaScript is also called client-side JavaScript?

LiveWire

Native

Microsoft

Navigator

Question 10 of 25

Question 11 of 25

11. What is the code to be used to trim whitespaces ?

let trimmed = for(l in lines));

let trimmed = l.trim();

let trimmed = (trim(l));

let trimmed = (l.trim() for (l in lines));

Question 11 of 25

Question 12 of 25

12. Why so JavaScript and Java have similar name?

None of the above

JavaScript's syntax is loosely based on Java's

They both originated on the island of Java

JavaScript is a stripped-down version of Java

Question 12 of 25

Question 13 of 25

13. Which of the following attribute can hold the JavaScript version?

VERSION

SCRIPT

LANGUAGE

None of the above

Question 13 of 25

Question 14 of 25

14. JavaScript variables are case-sensitive?

False

True

Question 14 of 25

Question 15 of 25

15. How does JavaScript store dates in a date object?

The number of milliseconds since January 1st, 1970

None of the above

The number of days since January 1st, 1900

The number of seconds since Netscape's public stock offering.

Question 15 of 25

Question 16 of 25

16. What is the correct JavaScript syntax to write "Hello World"?

document.write("Hello World")

response.write("Hello World")

println ("Hello World")

System.out.println("Hello World")

Question 16 of 25

Question 17 of 25

17. Which of the following way can be used to indicate the LANGUAGE attribute?

Question 17 of 25

Question 18 of 25

18. The __ operator determines whether an object is an instance of another object?

delete

void

instanceof

typeof

Question 18 of 25

Question 19 of 25

19. What is the output of this expression? x = 2 + "2"; document.write(x)?

22

Syntax Error

4

2

Question 19 of 25

Question 20 of 25

20. Which of the following can't be done with client-side JavaScript?

Validating a form

Storing the form's contents to a database file on the server

Sending a form's contents by email

None of the above

Question 20 of 25

Question 21 of 25

21. Consider the following code snippet

let succ = function(x) x+1, yes = function() true, no = function() false;

What convenience does the above code snippet provide?

Shorthand expression

Modular behaviour

Functional behaviour

No convenience

Question 21 of 25

Question 22 of 25

22. What should appear at the very end of your JavaScript?
The <script LANGUAGE="JavaScript">tag

The

Question 22 of 25

Question 23 of 25

23. ______ tag is an extension to HTML that can enclose any number of JavaScript statements?

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Test Instructions
Test Name	:	JavaScript MCQs
Subject	:	Computer General
Test Type	:	Mcqs
Total Question	:	25
Total Marks	:	50
Total Time	:	20 Minutes

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JavaScript Quiz Online Test Mcqs

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JavaScript Quiz Online Test Mcqs Questions with Answers Objective Type PDF

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