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jQuery - Online Quiz

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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 a valid type of function javascript supports?

A - named function

B - anonymous function

C - Both of the above.

D - None of the above.

Answer : C

Explaination

A function in JavaScript can be either named or anonymous.

Q 2 - Which built-in method combines the text of two strings and returns a new string?

A - append()

B - concat()

C - attach()

D - None of the above.

Answer : B

Explaination

concat() method returns the character at the specified index.

Q 3 - Which of the following jQuery selector selects elements with the given element tag-name?

A - $('tag-name')

B - $('#tag-name')

C - $('.tag-name')

D - None of the above.

Answer : A

Explaination

$('tag-name') selects all element of type tag-name in the document. For example, $('p') selects all paragraphs <p> in the document.

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

A - html( )

B - getHtml( )

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 filter out elements from a set of matched elements?

A - filter( selector )

B - setFilter( selector )

C - putFilter( selector )

D - None of the above.

Answer : A

Explaination

The filter( selector ) method can be used to filter out all elements from the set of matched elements that do not match the specified selector(s). The selector can be written using any selector syntax.

Q 6 - Which of the following jQuery method gets a set of elements containing the unique ancestors of the matched set of elements?

A - offsetParent( selector )

B - offset( selector)

C - parents( selector )

D - None of the above.

Answer : C

Explaination

The parents( [selector] ) method gets a set of elements containing the unique ancestors of the matched set of elements (except for the root element).

Q 7 - Which of the following jQuery method gets the style property of an element?

A - getClass( name )

B - getStyle( name)

C - css( name )

D - None of the above.

Answer : C

Explaination

The css( name ) method returns a style property on the first matched element.

Q 8 - Which of the following jQuery method returns the outer height (including the border) of an element?

A - getCSSHeight( )

B - getHeight( )

C - outerHeight( [margin] )

D - None of the above.

Answer : C

Explaination

The outerHeight( [margin] ) method gets the outer height (includes the border and padding by default) for the first matched element.

Q 9 - Which of the following jQuery method binds a handler to one or more events (like click) for an element?

A - bind( type, [data], fn )

B - load(type, [data], fn )

C - attach(type, [data], fn )

D - None of the above.

Answer : A

Explaination

The bind( type, [data], fn ) function binds a handler to one or more events (like click) for each matched element. Can also bind custom events.

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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