Using hooks inside class components
React Hooks were designed specifically for function components and cannot be used directly inside class components. This is a fundamental constraint of React’s architecture. Here’s what you need to know:….
Tag: React optimization
Listening to window events without cleaning them up
A particularly insidious type of memory leak occurs when you add event listeners to the window object but fail to remove them when your React component unmounts. Here’s what you….
Forgetting to remove event listeners on unmount
A common memory leak issue in React occurs when event listeners aren’t properly removed when components unmount. Here’s how to handle this correctly: The Problem When you add event listeners….
Using state updates inside a loop without batching
Using state updates inside a loop without batching in React can lead to performance issues, unexpected UI behavior, and inefficient rendering. React’s setState is asynchronous and batches updates for performance…..
Too many event listeners causing performance degradation
Managing Event Listeners for Optimal Performance Excessive or improperly managed event listeners can significantly degrade your application’s performance, leading to memory leaks and sluggish user interactions. The Problem: Uncontrolled Event….
Not using useCallback when passing event handlers to child components
The Importance of useCallback for Event Handlers in React When passing event handlers to child components, not using useCallback can lead to performance issues. Here’s why it matters and how….
Using state updates inside a loop without batching
Handling State Updates Inside Loops in React When you need to update state multiple times within a loop, you must be careful to avoid performance issues and ensure state consistency…..
Excessive DOM manipulations inside React components
Optimizing DOM Manipulations in React Components Excessive direct DOM manipulation in React components defeats the purpose of React’s virtual DOM and can lead to performance issues. Here’s how to properly….
Not using React.memo for functional components
Optimizing Functional Components with React.memo React.memo is a powerful performance optimization tool that prevents unnecessary re-renders of functional components. Here’s how to use it effectively to boost your application’s performance…..
Re-rendering large lists without virtualization
In React, rendering large lists without using virtualization can lead to significant performance issues, especially when dealing with hundreds or thousands of items. Virtualization is a technique that ensures only….