jQuery - Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to jQuery Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - Which of the following is correct about jQuery?

A - The jQuery made it easy to select DOM elements, traverse them and modifying their content by using cross-browser open source selector engine called Sizzle.

B - The jQuery helps you a lot to develop a responsive and feature-rich site using AJAX technology.

C - The jQuery comes with plenty of built-in animation effects which you can use in your websites.

D - All of the above.

Answer : D

Explaination

All of the above options are correct.

Q 2 - Which built-in method removes the last element from an array and returns that element?

D - None of the above.

Answer : C

Explaination

pop() method removes the last element from an array and returns that element.

Q 3 - Which built-in method returns the calling string value converted to lower case?

A - toLowerCase()

C - changeCase(case)

D - None of the above.

Answer : A

Explaination

toLowerCase() method returns the calling string value converted to lower case.

Q 4 - Which of the following jQuery method gets the html contents (innerHTML) of the first matched element?

C - getInnerHtml( )

D - None of the above.

Answer : A

Explaination

The html() method gets the html contents (innerHTML) of the first matched element.

Q 5 - Which of the following jQuery method selects a subset of the matched elements?

A - subset( selector )

B - getSubset( selector )

C - slice(selector)

D - None of the above.

Answer : C

Explaination

The slice(selector) method selects a subset of the matched elements.

Q 6 - Which of the following jQuery method gets a set of elements containing the unique next siblings of each of the given set of elements?

A - locateNext( selector )

B - getNext( selector)

C - next( selector )

D - None of the above.

Answer : C

Explaination

The next( [selector] ) gets a set of elements containing the unique next siblings of each of the given set of elements.

Q 7 - Which of the following jQuery method sets the width property of an element?

A - setCSSWidth( value )

B - setWidth( value)

C - width( value )

D - None of the above.

Answer : C

Explaination

The width( value ) method sets the width of every matched element.

Q 8 - Which of the following jQuery method removes set of matched elements?

C - remove( expr )

D - None of the above.

Answer : C

Explaination

The remove( expr ) method removes all matched elements from the DOM.

Q 9 - Which of the following jQuery method can be used to attach a function to be executed whenever an AJAX request fails?

A - ajaxStart( callback )

B - ajaxComplete( callback )

C - ajaxSend( callback )

D - ajaxError(callback)

Answer : D

Explaination

The ajaxError( callback ) method can be used to attach a function to be executed whenever an AJAX request fails.

Q 10 - Which of the following jQuery method can be used to attach a function to be executed when all AJAX requests have ended?

A - ajaxStart( callback )

B - ajaxComplete( callback )

C - ajaxSend( callback )

D - ajaxStop(callback)

Answer : D

Explaination

The ajaxStop( callback ) method can be used to attach a function to be executed when all AJAX requests have ended.

jquery_questions_answers.htm

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