What Actually Happens When You Run node index.js? скачать в хорошем качестве

What Actually Happens When You Run node index.js?

Ever wonder what's actually happening behind the scenes when you run node index.js? It’s far more than just executing JavaScript. In this deep dive, we explore the "hidden" startup sequence of the Node.js runtime—from V8 isolate creation and synchronous module graph resolution to libuv event loop initialization. We break down a real-world production disaster where a fintech platform’s infrastructure collapsed not because of bad code, but because of a fundamental misunderstanding of these internal mechanics. Learn why rapid horizontal scaling can trigger a resource consumption spiral, how initialization costs can burn through your cloud budget, and how to architect your systems for long-lived, high-concurrency performance instead of ephemeral process churn. This is essential knowledge for any senior engineer looking to move beyond the black box and build truly scalable backend systems. #NodeJS #BackendEngineering #SystemDesign #SoftwareArchitecture #V8Engine #WebDevelopment #DevOps #JavaScript #CodingTips #TechDeepDive