Frontend Performance: Bundle Analysis, Code Splitting, and Lazy Loading
By Dr. Sarah ChenAugust 12, 20251 min read0 commentsPerformance & Optimization
# Frontend Performance: Bundle Analysis, Code Splitting, and Lazy Loading
> Performance optimization techniques for modern applications.
## Overview
Performance optimization is crucial for user experience and business metrics.
## Key Metrics
- First Contentful Paint (FCP)
- Largest Contentful Paint (LCP)
- Time to Interactive (TTI)
- Cumulative Layout Shift (CLS)
## Optimization Strategies
- Measure first, optimize second
- Focus on critical rendering path
- Implement progressive enhancement
- Use performance budgets
## Example
```typescript
// Lazy load components
const LazyComponent = lazy(() => import('./HeavyComponent'));
// Use React.memo for expensive renders
const ExpensiveComponent = React.memo(({ data }) => {
return
{expensiveCalculation(data)}
;
});
```
## Resources
- Related: performance
- Related: webpack
- Related: code-splitting
- Related: lazy-loading
Share this post
#Performance#Webpack#Code Splitting#Lazy Loading