โšก Performance Optimization

Optimize module loading, caching strategies, and minimize overhead without compromising functionality.

Jump to Core Techniques See Code Samples

Core Optimization Strategies

โ›๏ธ

Lazy Loading

Load modules only when needed to reduce initial page load time and improve user experience.

  • Defer non-critical module loads
  • Use route-based loading patterns
  • Implement visibility-triggered loading
๐ŸงŠ

Caching Strategies

Implement browser, server, and memory caching to reduce redundant computations and network requests.

  • Use HTTP cache headers effectively
  • Implement in-memory result caching
  • Consider service worker caching

Implementation Examples

Webpack Code Splitting

// webpack.config.js
module.exports = {
  optimization: {
    splitChunks: {
      chunks: 'all',
      minSize: 20000,
      maxSize: 70000,
      minChunks: 1,
      maxAsyncRequests: 30,
      maxInitialRequests: 30,
      enforceSize: true
    }
  }
}

Configure your bundler to split code into smaller chunks that load on demand.

DNS Prefetching

<link rel="dns-prefetch" href="https://cdn.modules.io">
<link rel="prefetch" href="/modules/large-module.js" as="script">

Use resource hints to prioritize critical resources and optimize DNS lookups.

Best Practices

๐Ÿงผ

Minification

Always minify CSS, JavaScript, and HTML files to reduce payload sizes.

Tools:

  • Terser for JavaScript
  • CSSNano for CSS
  • HTMLMinifier for HTML
๐Ÿ–ผ๏ฟฝ

Image Optimization

Use modern formats (WebP, AVIF) and resize images to optimal dimensions.

Implementation:

  • Responsive images with srcset
  • Lazy loading attribute
  • Image quality optimization

Monitoring & Benchmarking

๐Ÿ”

Lighthouse Audits

Use Chrome DevTools Lighthouse to identify performance bottlenecks and optimize critical metrics.

  • โœ“ First Contentful Paint
  • โœ“ Time to Interactive
  • โœ“ Largest Contentful Paint
๐Ÿ“Š

Performance Budgetss

Set strict limits on bundle size, number of requests, and load times to maintain high performance standards.

Example Budget:

  • JavaScript: 500KB (minified)
  • Page load time: < 2s
  • Max 15 HTTP requests

Related Guides

Design Patterns

Understand core principles of modularity, including component separation and interface design.

Testing

Implement unit tests, integration tests, and validation strategies for robust performance testing.

State Management

Learn how to architect stateful modules with efficient memory and resource management.