State lifecycle React Questions
Master state lifecycle react interviews with our comprehensive collection of 8 questions and challenges.
Understand the difference between props and state in React — one for data input, the other for dynamic data changes.
Use the spread operator or functional updates to safely add new data into a useState array in React.
Learn how to handle post-state updates in React using useEffect and useLayoutEffect hooks.
Use useEffect with an empty dependency array to run code once when the component mounts.
Use useEffect without a dependency array to execute logic after every render in React.
Force a re-render in React using useReducer or key property updates instead of useState.
Understand how useState and useEffect simplify React component logic and replace lifecycle methods.
Use state variables or props to trigger re-renders in React whenever data changes.