Question 1: Why should you not copy the values of props into a component's state?
Answer: It will create two instances of the same state that can become out of sync.
Question 2: What is not a rule for React Hooks?
Answer: Hooks can be called in Class or Function components
Question 3: What is a common use case for ref?
Answer: To access the DOM node.
Question 4: How can you optimize performance for a function component that always renders the same way?
Answer: Wrap it in a React.memo higher order component
Question 5: A copy of the 'real' DOM that is kept in memory is called what?
Answer: Virtual DOM
BONUS
Question: What is the children prop?
Answer: A property that lets you nest components in other components
Let me know if this helped ;)
Top comments (1)
nice write up 👍🏾