What does the $ sign represent in jQuery syntax?

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

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

Which of the following is true about jQuery selectors?

A). Select by tag name

B). Cannot select by ID

C). Can select by various criteria

D). Limited to selecting parent elements

Which jQuery method is used to append content to an element?

A). Add content

B). Append content

C). Insert content

D). Attach content

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

A). execute()

B). ready()

C). load()

D). complete()

How can you execute jQuery code after the DOM is fully loaded?

A). document.onload

B). Embedding jQuery code

C). jQuery.ready()

D). window.onload

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

A). Loop through elements

B). Handle events

C). Create animations

D). Perform AJAX requests

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

A). Add attributes

B). Get or set attributes

C). Remove attributes

D). Toggle attributes

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 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