Q11. Is Hooks cover all use cases for classes?
Hooks doesn't cover all use cases of classes but there is a plan to add them soon. Currently there are no Hook equivalents to the uncommon **getSnapshotBeforeUpdate** and...
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Q12. What is the stable release for hooks support?
React includes a stable implementation of React Hooks in 16.8 release for below packages 1. React DOM 2. React DOM Server 3. React Test Renderer 4. React Shallow Renderer
Q13. What are the sources used for introducing hooks?
Hooks got the ideas from several different sources. Below are some of them, 1. Previous experiments with functional APIs in the react-future repository 2. Community exper...
Q14. What is the purpose of eslint plugin for hooks?
The ESLint plugin enforces rules of Hooks to avoid bugs. It assumes that any function starting with ”use” and a capital letter right after it is a Hook. In particular, th...
Q15. How do you make sure that user remains authenticated on page refresh while using Context API State Management?
When a user logs in and reload, to persist the state generally we add the load user action in the useEffect hooks in the main App.js. While using Redux, loadUser action c...
Q16. What are the differences between useEffect and useLayoutEffect hooks?
useEffect and useLayoutEffect are both React hooks that can be used to synchronize a component with an external system, such as a browser API or a third-party library. Ho...
Q17. How is `useReducer` Different from `useState`?
There are notable differences between `useState` and `useReducer` hooks. | Feature | `useState` | `useReducer` | |-----------------------|--------------------------------...
Q18. Can Hooks be used in class components?
No, Hooks cannot be used inside class components. They are specially designed for function components. This is because hooks depend on the sequence in which they are call...
Q19. What happens if you call `useState` conditionally?
As per rules of React Hooks, hooks must be called unconditionally. For example, if you conditionally call it: ```js if (someCondition) { const [state, setState] = useStat...
Q20. Can you explain how useState works internally?
React’s hooks, including `useState`, rely on some internal machinery that keeps track of state **per component** and **per hook call** during rendering. Here's a simplifi...