What does the $ sign represent in jQuery syntax?

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

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

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

A). Add attributes

B). Get or set attributes

C). Remove attributes

D). Toggle attributes

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

A). Add content

B). Append content

C). Insert content

D). Attach content

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

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

A). execute()

B). ready()

C). load()

D). complete()

How do you select an element with ID 'example' using jQuery?

A). $('example')

B). $('#example')

C). $('.example')

D). document.getElementById('example')

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

A). Create CSS styles

B). Apply CSS styles

C). Change color of text

D). Hide elements

Which jQuery method is used to handle click events?

A). .on()

B). .click()

C). .handle()

D). .trigger()

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

A). Remove form inputs

B). Validate form inputs

C). Get or set the value

D). Add validation rules