How useCallback works?
Wrapping a function in useCallback instructs React to maintain a reference to that function instance across renders, preserving it unless the specified inputs (dependencies) undergo modification. This memoization mechanism ensures that the function remains consistent, promoting performance optimization by avoiding unnecessary re-renders.
Optimizing Performance with useMemo and useCallback Hooks
In React applications, optimizing performance is crucial for ensuring smooth user experiences, especially in components with complex computations or frequent re-renders. Two hooks provided by React, useMemo, and useCallback, offer efficient ways to achieve performance improvements by memoizing values and callback functions, respectively.
Table of Content
- Understanding the Need for Optimization
- Determining When to Utilize These Hooks
- useMemo: Preserving Computation Results
- useCallback: Memoizing Functions
- How useCallback works?
- Preventing Unnecessary Child Component Rerenders
- Benefits of useMemo an useCallback Hooks
- Conclusion