Optimizing Performance with useMemo A common React performance pitfall is not memoizing expensive computations, which can lead to unnecessary re-calculations and sluggish user interfaces, especially in complex components. The Problem:….
Handling API Response Data Safely in React A common issue when working with asynchronous data fetching is attempting to access API response data before it’s actually loaded, resulting in “Cannot….
Proper Async Cleanup in useEffect A common React anti-pattern is not properly handling cleanup for asynchronous operations in useEffect, which can lead to memory leaks and state updates on unmounted….
Migrating from history.push() to useNavigate() in React Router v6 React Router v6 introduced significant changes, replacing the history API with the useNavigate() hook. Here’s how to properly handle navigation in….
Understanding useRef and Component Re-renders A common misconception in React is expecting a component to re-render when a useRef value changes. This doesn’t happen because refs are designed specifically to….
Calling useContext outside of a <Context.Provider> in React is a common mistake that can lead to unexpected behavior. Here’s why: What Happens When useContext is Used Outside of <Context.Provider>? When….
In React, when using the useReducer hook, it’s important that the reducer function always returns a new state rather than mutating the existing state directly. If you forget to return….
An infinite loop in useEffect due to incorrect dependencies occurs when the dependencies in the dependency array of useEffect cause the effect to re-run indefinitely. This happens because the state….
When using useEffect to handle subscriptions or similar side effects in React, it’s important to properly clean up those subscriptions when the component is unmounted or when the effect dependencies….
Handling Non-Serializable Values in useEffect Dependencies A common React performance pitfall occurs when passing non-serializable values (like functions, class instances, or complex objects) into a useEffect dependency array. This can….
