WarsawJS Talk English

Under the Hood of JavaScript (Lightning Talk ⚡️)

Presented at Meetup #134 Wed, Jan 14, 2026
Location 42 Warsaw, al. „Solidarności" 171B, 00-877 Warsaw

About this Talk

JavaScript doesn't simply run your code — it first transforms it. In this talk, we'll look at the three key stages inside the engine: parsing, compilation, and execution. By the end, you'll understand what really happens before your app comes alive.

Michał Simiński

Michał Simiński

Fullstack Developer

Frontend Developer with 4+ years of experience delivering scalable React and Next.js applications across biotech, data analytics, and proof-of-concept projects. Skilled in modern frontend architecture, state management, testing practices, and automation with Ansible. Since 2025, working as a Fullstack Developer, expanding expertise with Python FastAPI, AI-driven workflows, and automation tooling. Focused on leveraging AI to accelerate productivity and deliver innovative solutions.

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