When to Use Which Hook?

React provides powerful hooks that allow you to manage state, side effects, performance optimizations, and much more — all inside functional components. Here's a concise guide on when to use each hook:

Hook	Use Case
useState	Manage local component state (e.g., input fields, toggles, counters)
useEffect	Perform side effects (e.g., data fetching, subscriptions, timers)
useContext	Access shared/global state without prop drilling (e.g., theme, auth)
useRef	Reference DOM elements or store mutable values across renders
useReducer	Manage complex state logic or state transitions (e.g., form wizard, cart)
useMemo	Optimize performance by memoizing expensive calculations
useCallback	Memoize functions to prevent unnecessary re-renders
useLayoutEffect	Execute synchronously after DOM changes but before browser paint

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Example Use Cases:

• Use useState for toggling modals or tracking form values.
• Use useEffect to fetch data from an API when a component mounts.
• Use useContext to access user authentication info across components.
• Use useReducer to manage complex multi-step form data with validation.
• Use useMemo to avoid recalculating filtered lists or sorting operations.
• Use useCallback when passing callback props to memoized child components.
• Use useLayoutEffect to measure layout before browser paint (e.g., animations or positioning).

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Comments

[Abhiwan Technology]

Very intresting topic is shared. Nowadays most of the India based top Augmented Reality Services companies development team uses this in case of for toggling modals or tracking form values.