What does the .val() method do in jQuery?

Which jQuery method is used to select elements by their class name?

A). selectByClass()

B). getElementByClass()

C). querySelector()

D). $('.className')

What is the purpose of the .addClass() method in jQuery?

A). Remove a class

B). Add a class

C). Toggle a class

D). Hide an element

What is jQuery?

A). JavaScript framework

B). Programming language

C). Markup language

D). Database language

Which function is used to execute code when the DOM is fully loaded in jQuery?

A). execute()

B). ready()

C). load()

D). complete()

What is the purpose of the .html() method in jQuery?

A). Change HTML content

B). Get HTML content

C). Add HTML content

D). Hide an element

What is the purpose of the .fadeIn() method in jQuery?

A). Show element with fading effect

B). Hide element with fading effect

C). Toggle visibility of element with fading effect

D). Adjust opacity of element gradually

How can you animate an element's width using jQuery?

A). $('#element').animate({width: '+=100px'})

B). $('#element').animate({width: '100px'})

C). $('#element').width('100px')

D). $('#element').style

What does the $ sign represent in jQuery syntax?

A). Variable name

B). Define a function

C). jQuery object

D). Comment

How can you include jQuery in an HTML document?

A). tag

B). External file

C). <script> tag

D). Embedding code

What does the .attr() method do in jQuery?

A). Add attributes

B). Get or set attributes

C). Remove attributes

D). Toggle attributes