jQuery - Online Quiz

Q 1 - Which of the following type of variable is visible only within a function where it is defined?

A - global variable

B - local variable

C - Both of the above.

D - None of the above.

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.

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.

Q 4 - Which of the following jQuery method adds the specified class if it is not present, remove the specified class if it is present?

A - toggleStyleClass( class )

B - toggleClass( class )

C - toggleCSSClass( class )

D - None of the above.

Q 5 - Which of the following jQuery method adds more elements, matched by the given selector, to the set of matched elements?

A - add( selector )

B - addElement( selector )

C - append(selector)

D - None of the above.

Q 6 - Which of the following jQuery method gets a set of elements containing the closest parent element that matches the specified selector, the starting element included?

A - getNearest( selector )

B - getClosest( [selector])

C - closest(selector)

D - None of the above.

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.

Q 8 - Which of the following jQuery method gets the inner width (excluding the border) of an element?

A - getCSSWidth( )

B - innerWidth( )

C - getInnerWidth( )

D - None of the above.

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.

Q 10 - Which of the following jQuery method can be used to attach a function to be executed whenever AJAX request completed successfully?

A - ajaxStart( callback )

B - ajaxSuccess( callback )

C - ajaxSend( callback )

D - ajaxStop(callback)