What does the jQuery attr() function do?

Which command selects an element using its ID?

Which selector matches all elements?

jQuery uses CSS selectors to select elements?

What is '$();' equivalent to?

What function can be used to alternate an element's state between display and hidden?

You're working on a site that uses an old version of jQuery, and you want to update to a newer version. What's the most efficient way to do so?

Which CSS selectors can you NOT use in jQuery?

What is the correct way to check how many paragraphs exist on a page using jQuery?

You want to create a custom right-click menu. How might you start the code?

What is the main difference between selectors and filters?