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 - Can you assign a anonymous function to a variable?

A - true

B - false

Answer : A

Explaination

Yes! An anonymous function can be assigned to a variable.

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 is correct about jQuery selector?

A - A jQuery Selector is a function which makes use of expressions to find out matching elements from a DOM based on the given criteria.

B - jQuery selectors are used to select one or more HTML elements using jQuery.

C - jQuery selectors start with the dollar sign and parentheses - $()

D - All of the above.

Answer : D

Explaination

All of the above options are correct.

Q 4 - Which of the following jQuery method removes an attribute from each of the matched elements?

A - deleteAttr( name )

B - removeAttr( name )

C - removeAttribute( name )

D - None of the above.

Answer : B

Explaination

The removeAttr( name ) method can be used to remove an attribute from each of the matched elements.

Q 5 - Which of the following jQuery method checks the current selection against an expression?

A - getIs( selector )

B - is( selector )

C - checkIs( selector )

D - None of the above.

Answer : B

Explaination

The is( selector ) method checks the current selection against an expression and returns true, if at least one element of the selection fits the given selector.

Q 6 - Which of the following jQuery method finds all the child nodes inside the matched elements (including text nodes), or the content document, if the element is an iframe?

A - getChildren( selector )

B - getContents( [selector])

C - contents(selector)

D - None of the above.

Answer : C

Explaination

The contents( ) method finds all the child nodes inside the matched elements (including text nodes), or the content document, if the element is an iframe.

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

A - setClass( name, value )

B - setStyle( name, value)

C - css( name, value )

D - None of the above.

Answer : C

Explaination

The css( name, value ) method sets a style property on the first matched element.

Q 8 - Which of the following jQuery method gets the current offset of the first matched element, in pixels, relative to the document?

A - offset( )

B - offsetParent( )

C - position( )

D - None of the above.

Answer : A

Explaination

The offset( ) method gets the current offset of the first matched element, in pixels, relative to the document.

Q 9 - Which of the following jQuery method checks if event.stopImmediatePropagation() was ever called on this event object?

A - isDefaultPrevented( )

B - isPropagationStopped( )

C - isImmediatePropagationStopped( )

D - None of the above.

Answer : C

Explaination

The isImmediatePropagationStopped() method of Event object returns whether event.stopImmediatePropagation() was ever called on this event object.

Q 10 - Which of the following jQuery method loads and executes a JavaScript file 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 : C

Explaination

The jQuery.getScript( url, [callback] ) method loads and executes a JavaScript file using an HTTP GET request.

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