Passing new object references in props every render
In React, passing new object references in props on every render can lead to unnecessary re-renders of child components, even if the actual data inside the objects hasn’t changed. This….
Tag: React optimization
Not memoizing expensive computations using useMemo
In React, expensive computations (such as complex calculations or large data processing) can slow down the app, especially when they are recalculated on every render. To optimize performance, React provides….
Using inline functions causing unnecessary renders
Optimizing Performance by Avoiding Unnecessary Renders from Inline Functions Inline functions in React components can lead to performance issues by causing unnecessary re-renders of child components. Here’s a deep dive….
Re-rendering entire component tree unnecessarily
Unnecessary re-renders in React occur when the component tree re-renders more often than needed, affecting performance. This can lead to slower UI updates, especially in large applications, as React may….
Debugging React Performance Issues with Flame Graphs
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….
Image Lazy Loading and Code Splitting
Optimizing the performance of your React applications is crucial to providing users with a smooth and responsive experience. Two effective strategies to achieve this are Image Lazy Loading and Code….
Optimizing Large Lists with React Window
When dealing with large lists or data-heavy views in React, rendering all the items at once can significantly hurt performance, especially in terms of memory usage and rendering time. One….
Debouncing & Throttling with Lodash in React
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….
Using React.memo Effectively for Performance
React.memo() is a higher-order component (HOC) in React that helps optimize the performance of functional components by preventing unnecessary re-renders. It works by memoizing the rendered output of a component….
Implementing Virtual DOM Optimization
The Virtual DOM is one of React’s core features that enables it to efficiently update the actual DOM. It serves as an in-memory representation of the real DOM, which React….