Optimizing Event Handlers with useCallback A common performance oversight in React is not using useCallback for event handlers, which can lead to unnecessary re-renders of child components. The Problem: Unoptimized….
Avoiding Infinite Re-renders from setState in render() Calling setState within the render() method (or directly in the function component body) creates an infinite loop because: The Problem Code Correct Solutions….
Understanding Asynchronous State Updates in React A common mistake in React is assuming that state updates happen immediately when you call setState() or the state setter from useState(). Here’s what….
Flame graphs are powerful visualization tools that help identify performance bottlenecks in React applications. Here’s a comprehensive guide to using them effectively: Understanding Flame Graphs What They Show Key Patterns….
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….
Animating <canvas> elements in React allows you to create highly dynamic graphics, games, or visual effects directly in the browser. The HTML <canvas> element provides a resolution-dependent bitmap canvas that….
React Spring is a powerful and flexible animation library that allows for fluid and interactive animations in React applications. It is based on physics, meaning that animations behave in a….
React Query is a powerful library for managing server state in React applications. It simplifies data fetching, caching, synchronization, and state management of server-side data. React Query abstracts away the….
Apollo Client is a comprehensive state management library for JavaScript that enables you to manage both local and remote data with GraphQL. Here’s how to effectively integrate Apollo Client in….
In React, performance optimization is essential, especially when handling user input or actions that could trigger frequent updates, such as keystrokes, window resizing, or scrolling. Debouncing and throttling are two….
