Which array method should you apply to run a function for every item within an array, returning an array of all items for which the function is true?

You want to create striped table rows using CSS without adding a class to any element. Which CSS would correctly apply the background color to every odd row in your table?

You are designing a site and creating a navigation bar linking to the main sections. Which HTML element should you use to indicate that this is the main navigation?

You discover that CSS is being loaded on a website using the following code. Why might a web developer have done this?

The flex property is often applied to flex items with a value of 1. Using flex: 1 is a shorthand - what does it unpack to?

What does the term "tree shaking" mean with regard to JavaScript performance?

What is Webpack primarily used for?

Which HTML element represents either a scalar value within a known range OR a fractional value?

How does the rem unit represent a font size?

Which statement is true when an HTML tag has been deprecated?

Which HTML element is not considered a landmark element?