JavaScript Mcqs Test Online

Q: How can I prepare for JavaScript Mcqs Test Online?

You can prepare for JavaScript Mcqs Test Online by attempting the free online quizzes at Gotest.com.pk. We provide instant results, performance reports, and detailed explanations for every question.

Question 1

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

Answer

None of the above

Question 2

2. Why so JavaScript and Java have similar name?

Answer

JavaScript's syntax is loosely based on Java's

Answer

JavaScript is a stripped-down version of Java

Answer

They both originated on the island of Java

Answer

None of the above

Question 3

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

Answer

None of the above

Answer

_first_and_last_names

Answer

FirstAndLast

Question 4

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

Answer

instanceof

Question 5

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

Answer

The END statement

Answer

None of the above

Question 6

6. 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?

Answer

Modular behaviour

Answer

Functional behaviour

Answer

Shorthand expression

Answer

No convenience

Question 7

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

Answer

println ("Hello World")

Answer

response.write("Hello World")

Answer

document.write("Hello World")

Answer

System.out.println("Hello World")

Question 8

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

Question 9

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

Answer

None of the above

Answer

Sending a form's contents by email

Answer

Validating a form

Answer

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

Question 10

10. What is the alternate name for Java script?

Answer

LimeScript

Answer

Coffee Script

Answer

ECMAScript

Question 11

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

Answer

Client-side

Answer

Server-side

Question 12

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

Answer

Syntax Error

Question 13

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

Answer

A central machine deep within Netscape's corporate offices

Answer

The User's machine running a Web browser

Answer

None of the above

Answer

The Web server

Question 14

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

Question 15

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

Answer

instanceof

Question 16

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

Answer

None of the above

Question 17

18. JavaScript variables are case-sensitive?

Question 18

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

Question 19

20. Consider the following code snippet

data.sort(function(a,b),b-a);

What does the above code do?

Answer

Sort in the chronological order

Answer

Sort in reverse alphabetical order

Answer

Sort in the alphabetical order

Answer

Sort in reverse numerical order

Question 20

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

Answer

Accept parameters

Answer

None of the above

Answer

Accept parameters and Return a value

Answer

Return a value

Question 21

22. What are variables used for in JavaScript Programs?

Answer

Causing high-school algebra flashbacks

Answer

Varying randomly

Answer

Storing numbers, dates, or other values

Answer

None of the above

Question 22

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

Answer

None of the above

Answer

The number of days since January 1st, 1900

Answer

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

Answer

The number of milliseconds since January 1st, 1970

Question 23

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

Answer

let trimmed = l.trim();

Answer

let trimmed = (trim(l));

Answer

let trimmed = for(l in lines));

Answer

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

Question 24

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

Question 25

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Total Questions:	25
Time Allowed:	10 Minutes
Total Marks:	25
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	Computer Test Competitive exam Forces test Fpsc Entry test Recruitment test

JavaScript Mcqs Test Online

JavaScript Mcqs Test

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JavaScript Mcqs Test

JavaScript Mcqs Test Practice Online

Study Plan for JavaScript Mcqs Test Online

How to Use GoTest for Preparation:

You May Also Like

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Maan Ali

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