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Welcome to the Javascript MCQs Page

Dive deep into the fascinating world of Javascript with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Javascript, a crucial aspect of Web Technologies. In this section, you will encounter a diverse range of MCQs that cover various aspects of Javascript, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Web Technologies.

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Check out the MCQs below to embark on an enriching journey through Javascript. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Web Technologies.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Javascript. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Javascript MCQs | Page 2 of 11

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Q11.
Which built-in method returns the character at the specified index?

a.

characterAt()

b.

getCharAt()

c.

charAt()

d.

None of the above.

Discuss
Answer: (c).charAt()
Q12.
Which of the following function of String object returns a number indicating the Unicode value of the character at the given index?

a.

charAt()

b.

charCodeAt()

c.

concat()

d.

indexOf()

Discuss
Answer: (b).charCodeAt()
Q13.
Which of the following function of String object executes the search for a match between a regular expression and a specified string?

a.

concat()

b.

match()

c.

replace()

d.

search()

Discuss
Answer: (d).search()
Q14.
Which of the following function of String object returns the calling string value converted to upper case while respecting the current locale?

a.

toLocaleUpperCase()

b.

toUpperCase()

c.

toString()

d.

substring()

Discuss
Answer: (a).toLocaleUpperCase()
Q15.
Which of the following is a valid type of function javascript supports?

a.

named function

b.

anonymous function

c.

Both of the above

d.

None of the above

Discuss
Answer: (c).Both of the above
Q16.
How can you get the type of arguments passed to a function?

a.

using typeof operator

b.

using getType function

c.

Both of the above.

d.

None of the above.

Discuss
Answer: (a).using typeof operator
Q17.
Which of the following function of Array object removes the first element from an array and returns that element?

a.

reverse()

b.

shift()

c.

slice()

d.

some()

Discuss
Answer: (b).shift()
Q18.
....................... is a built - in JavaScript function which can be used to execute another function after a given time interval.

a.

Timeout( )

b.

TimeInterval( )

c.

setTimeout ( )

d.

All of the above

Discuss
Answer: (c).setTimeout ( )
Q19.
Java Script entities start with ___________and end with _____________.

a.

Semicolon, colon

b.

Semicolon, Ampersand

c.

Ampersand, colon

d.

Ampersand, semicolon

Discuss
Answer: (d).Ampersand, semicolon
Q20.
Which of the following is a server-side Java Script object?

a.

Function

b.

File

c.

FileUpload

d.

Date

Discuss
Answer: (b).File
Page 2 of 11

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