1. Code Splitting:
Dynamic Imports: Utilize dynamic imports to split your code into smaller chunks that load on-demand.
2. Tree Shaking:
Eliminate Dead Code: Use tree shaking to remove unused or redundant code during the bundling process.
Webpack Configuration: Configure Webpack for effective tree shaking.
3. Lazy Loading:
Lazy Load Images and Components: Implement lazy loading for images and components to reduce initial page load time.
Intersection Observer: Use the Intersection Observer API for efficient lazy loading.
4. Caching Strategies:
Service Workers: Implement service workers for client-side caching and offline capabilities.
HTTP Caching: Leverage HTTP caching headers to cache static assets on the server.
5. Optimizing Network Requests:
Minimize HTTP Requests: Reduce the number of HTTP requests by combining files and using sprites.
Use Content Delivery Networks (CDNs): Distribute static assets across multiple servers using CDNs for faster loading.
6. Web Performance APIs:
Intersection Observer: Efficiently track when an element enters or exits the viewport.
Performance and Navigation Timing APIs: Utilize APIs to gather detailed information about page load and navigation times.
Use const and let: Prefer const and let over var for better scoping.
Arrow Functions:Employ arrow functions for concise and lexically scoped functions.
Template Literals: Use template literals for cleaner string concatenation.
Introduction to WebAssembly: Explore using WebAssembly for performance-critical tasks.
9. Reducing Repaints and Reflows:
CSS Transform and Opacity: Use CSS transform and opacity for smoother animations without triggering layout recalculations.
RequestAnimationFrame: Optimize animations using requestAnimationFrame for smoother rendering.
10. Browser DevTools for Performance Profiling:
Performance and Memory Tabs: Explore the Performance and Memory tabs for in-depth analysis.
11. Progressive Web Apps (PWAs):
Offline Mode: Implement offline capabilities using service workers for a seamless user experience.
Add to Home Screen: Allow users to add your web app to their home screens for quick access.
12. Monitoring and Analytics:
Performance Monitoring Tools: Use tools like Lighthouse and PageSpeed Insights to assess and improve your website’s performance.
User Analytics: Analyze user behavior and optimize based on real user data.