In React, the useEffect hook is used for managing side effects like data fetching, subscriptions, and manual DOM manipulations. When working with subscriptions (e.g., WebSockets, event listeners, or external data….
Mastering useEffect Dependency Arrays The dependency array in useEffect is crucial for controlling when your effects run. Getting it wrong can lead to infinite loops, stale data, or effects that….
Managing Dependency Arrays in useEffect to Prevent Infinite Loops A common mistake with React’s useEffect hook is forgetting or incorrectly specifying the dependency array, which can lead to infinite re-renders….
Using Hooks in Class Components: Understanding the Limitations and Alternatives React Hooks are a powerful feature introduced in React 16.8, but they come with an important restriction: hooks only work….
Proper Usage of React Hooks: Avoiding Conditional and Loop Calls A fundamental rule of React Hooks is that they must be called unconditionally at the top level of your function….
Testing hooks requires different approaches than component testing since hooks can’t be called outside of React components. Here’s a comprehensive guide to effectively testing both built-in and custom hooks. Testing….
Handling asynchronous operations like fetching data, submitting forms, or dealing with side effects in React often involves managing state for loading, success, and error scenarios. Writing a reusable custom hook….
In React, custom hooks allow you to encapsulate reusable logic, making it easier to maintain and share stateful logic between components. However, poorly optimized custom hooks can lead to performance….
In React, handling cleanup of side effects is essential to prevent memory leaks and ensure that resources like network requests, event listeners, or timers are properly cleaned up when a….
Understanding the differences between these two hooks is crucial for optimizing performance and avoiding visual glitches in React applications. Key Differences Feature useEffect useLayoutEffect Timing After browser paint Before browser….
