4-2: React Hooks

Building on previous Module, we will have a deeper discussion of common patterns of programming with React. By the end of this module you should be able to:

• Explain the basic uses of useEffect
• Explain when a useEffect is executed, and when its return value is executed
• Construct simple custom hooks and explain why they are useful

• ip1 extension: this will be due on Monday, Sept 28th 11:59pm
• ip2 due on Monday, Oct 12th 11:59pm.

• This lecture will be live-coded

• 4-1: Improving a React Clock Tracker (continued)

• Tutorial: Basics of React

• Official documentation for React
• Official tutorial materials on React (exhaustive, but really good)
• Official tutorial materials on useState
• More official tutorial material on useState and arrays