Multiple courses take you deeper into Javascript, including "Redux with React JS: Learn Redux with Modern React JS" which is an enormous favorite of students, who rated it 4.8 out of 5 stars.

React JS may be popular af —right now—but should developers really spend their time learning it? What are the potential downsides?

useState is the most well-known hook for using functional components in React, but it's just a start. Here are eight more React hooks, and how to use them.