Marcio Cunha

Technical Articles

Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.

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Featured Articles
SpotlightFrontend•4 min

How to use WebAssembly in frontend to speed up heavy tasks

Learn how to offload heavy processing in the browser using Rust or C++ compiled to WebAssembly without freezing the user interface.

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Frontend•4 min

Heavy bundle? How to apply tree-shaking in Vite

Learn how to optimize your frontend build size by efficiently eliminating dead code from third-party libraries using Vite.

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Frontend•5 min

Why does your React app lag? How to stop unnecessary renders

Learn practical ways to use memoization hooks and component memoization in React to eliminate DOM rendering bottlenecks and speed up your web application.

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Frontend•4 min

How to create flexible layouts using CSS Flexbox practically

Understand the fundamentals of alignment and space distribution in CSS Flexbox by manipulating main and cross axes to build perfect flexible layouts.

Frontend•3 min

How to optimize WebP images in CSS for faster loading

Master the implementation of the picture element and CSS optimization techniques to serve WebP images efficiently and boost page rendering speed.

BackendFrontend•2 min

What is CORS and how to fix browser blocking errors

Understand the Same-Origin Policy and learn how to correctly configure HTTP headers to stop dealing with frustrating CORS blocking errors.

Frontend•4 min

How to optimize WebP images in Frontend to eliminate bottlenecks

Learn how fundamental WebP image compression concepts and modern frontend formats transform web loading performance and eliminate bottlenecks.

FrontendRedes•4 min

How to Inspect WebSocket Frames in Browser DevTools

Learn the core concept of real-time bidirectional communication and discover how to monitor, intercept, and debug WebSocket message frames directly in the network panel.

FrontendRedes•4 min

How to Inspect WebSocket Requests in Browser DevTools

Learn how to use the DevTools Network tab to capture, filter, and analyze real-time message frames exchanged via WebSocket.

FrontendRedes•5 min

How to Inspect HTTP Headers in the Browser Using DevTools

Learn step by step how to capture, analyze, and debug network requests and responses directly through the browser Network panel.

FrontendRedes•4 min

How to Inspect HTTP Headers in the Browser Using DevTools

Learn how to inspect HTTP headers in the browser using DevTools. Understand client-server communication, caching, CORS, and payload inspection.

Frontend•3 min

Heavy bundle in Vite? How to apply code splitting

Learn how to optimize web page loading by splitting your JavaScript project code in Vite into smaller and smarter chunks.

Frontend•4 min

Pages freezing? How to use Web Workers in React apps

Learn how to offload heavy data processing from the browser main thread using Web Workers to eliminate freezes and improve smoothness in React apps.