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.

Q 1 - How can you get the total number of arguments passed to a function?

A - Using args.length property

B - Using arguments.length property

C - Both of the above.

D - None of the above.

Answer : B

Explaination

Using arguments.length property, we can get the total number of arguments passed to a function.

Q 2 - Which of the following is correct about callbacks?

A - A callback is a plain JavaScript function passed to some method as an argument or option.

B - Some callbacks are just events, called to give the user a chance to react when a certain state is triggered.

C - Both of the above.

D - None of the above.

Answer : C

Explaination

A callback is a plain JavaScript function passed to some method as an argument or option. Some callbacks are just events, called to give the user a chance to react when a certain state is triggered.

Q 3 - Which of the following jQuery selector selects all elements available in a DOM?

A - $('*')

B - $('?')

C - $('#')

D - None of the above.

Answer : A

Explaination

$('*') selects all elements available in a DOM.

Q 4 - Which of the following jQuery method sets attributes of an element?

A - attr(name, value)

B - setAttr(name, value)

C - setAttributes(name, value)

D - None of the above.

Answer : A

Explaination

The attr(name, value) method can be used to set the named attribute onto all elements in the wrapped set using the passed value.

Q 5 - Which of the following jQuery method removes elements matching the specified selector from the set of matched elements?

A - getNotEquals( selector )

B - isNotEquals( selector )

C - not(selector)

D - None of the above.

Answer : C

Explaination

The not(selector) method removes elements matching the specified selector from the set of matched elements.

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 a set of elements containing all of the unique siblings of each of the matched set of elements?

A - parents( selector )

B - prevAll( selector)

C - siblings( selector )

D - None of the above.

Answer : C

Explaination

The siblings( [selector] ) method gets a set of elements containing all of the unique siblings of each of the matched set of elements.

Q 8 - Which of the following jQuery method removes all child nodes from the set of matched elements?

A - empty( )

B - delete( )

C - remove( expr )

D - None of the above.

Answer : A

Explaination

The empty( ) method removes all child nodes from the set of matched elements.

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 loads a remote page using an HTTP GET request?

A - jQuery.get( url, [data], [callback], [type] )

B - jQuery.getJSON( url, [data], [callback] )

C - jQuery.getScript( url, [callback] )

D - jQuery.post( url, [data], [callback], [type] )

Answer : A

Explaination

The jQuery.get( url, [data], [callback], [type] ) method loads a remote page using an HTTP GET request.

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