7 questions for “Class Components & Legacy Lifecycle Methods”

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7 questions in 1 technology

#	Question	Technology	Topic	Level
1	Why can only class components be used as error boundaries in React? React › Class Components & Legacy Lifecycle Methods	React	Class Components & Legacy Lifecycle Methods	Intermediate
2	How do you set and update state correctly inside a class component? React › Class Components & Legacy Lifecycle Methods	React	Class Components & Legacy Lifecycle Methods	Beginner
3	What does componentDidMount do in a class component and what is its equivalent using hooks? React › Class Components & Legacy Lifecycle Methods	React	Class Components & Legacy Lifecycle Methods	Intermediate
4	What is a class component in React and how does it differ from a function component? React › Class Components & Legacy Lifecycle Methods	React	Class Components & Legacy Lifecycle Methods	Beginner
5	What is componentDidUpdate used for, and what mistake should you watch out for when using it? React › Class Components & Legacy Lifecycle Methods	React	Class Components & Legacy Lifecycle Methods	Advanced
6	What is an error boundary in React and why is it useful? React › Error Boundaries	React	Error Boundaries	Beginner
7	What is the difference between a ref created with useRef and one created with createRef? React › Refs, useRef & forwardRef	React	Refs, useRef & forwardRef	Beginner