What's the purpose of .fadeIn() in jQuery?

How to include external script in HTML?

A). <script src=''>

B). <link href=''>

C). <jquery src=''>

D). <style src=''>

How to execute jQuery code when a button is clicked?

A). .on('click')

B). .click()

C). .bind('click')

D). .trigger('click')

What's the purpose of .slideDown() in jQuery?

A). Slide down element

B). Slide up element

C). Toggle visibility of element with sliding effect

D). Adjust height of element gradually

What's the purpose of .slideUp() in jQuery?

A). Slide down element

B). Slide up element

C). Toggle visibility of element with sliding effect

D). Adjust height of element gradually

How to select elements with a specific attribute in jQuery?

A). $('[attribute]')

B). getElementsByAttribute('attribute')

C). querySelector('[attribute]')

D). selectByAttribute('[attribute]')

What's the purpose of .html() in jQuery?

A). Get HTML content

B). Change HTML content

C). Add HTML content

D). Hide elements

How to include jQuery in an HTML document?

A). Download jQuery file

B). Use a CDN

C). Embed jQuery code

D). Import jQuery module

How to append content to an element in jQuery?

A). appendContent()

B). addContent()

C). insert()

D). attach()

Select all elements with a specific class in jQuery?

A). selectByClass('.classname')

B). getElementByClass('classname')

C). $('.classname')

D). document.getElementsByClassName('classname')

What does $ represent in jQuery syntax?

A). Comment

B). Variable name

C). jQuery object

D). Function