#Hooks

10 questions

• What are the Rules of Hooks? Why can't you call a hook conditionally?React#hooksMiddle›
• When should you use useMemo and useCallback, and what problem do they solve?React#performanceSenior›
• How does the useState hook work?React#hooksJunior›
• What is useEffect and when does it run?React#hooksJunior›
• What are common pitfalls with the useEffect dependency array and cleanup?React#hooksMiddle›
• When would you use useReducer instead of useState?React#hooksMiddle›
• What are the main use cases for useRef?React#hooksMiddle›
• What are custom hooks and how do you write one?React#hooksMiddle›
• What are forwardRef and useImperativeHandle for?React#hooksMiddle›
• What is the difference between useEffect and useLayoutEffect?React#hooksSenior›