Next ❯

Performance Basics

  • This lesson introduces React performance basics and explains how rendering impacts application efficiency.

  • Topic Overview

    Performance optimization in React focuses on making applications:

    • Faster

    • More responsive

    • Efficient with resources

    Good performance improves user experience, SEO, and application scalability.

    Performance Basics

    Why Performance Matters

    A slow application can cause:
     ❌ Poor user experience
     ❌ High bounce rate
     ❌ Low engagement

    Fast applications:
     ✅ Feel smooth
     ✅ Retain users
     ✅ Perform better on low-end devices

    Common Performance Issues

    Some common reasons for slow React apps:

    • Unnecessary re-renders

    • Large JavaScript bundle size

    • Heavy computations in components

    • Rendering large lists

    • Recreating functions on every render

    Understanding these issues helps in optimization.

Next ❯