Day 38: JavaScript Memory Management & Garbage Collection Explained 🤩
What really happens to memory in your JavaScript app? 🤔
In this Day 38 video, we dive deep into the world of JavaScript Memory Management and Garbage Collection — demystifying how your code allocates, uses, and frees memory.
You’ll learn:
✅ What is memory management in JavaScript
✅ How JavaScript’s Garbage Collector Works
✅ Key concepts like reachability and object references
✅ The Mark-and-Sweep algorithm explained with diagram & pseudocode
We also cover cyclic references, closure leaks, and how to avoid them in real-world apps. If you want to level up your performance skills and write memory-safe JavaScript, this video is for you.
Whether you’re a beginner or an experienced developer, this video will help you master the browser’s capabilities with confidence.
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Timecodes
0:00 - What are We Learning?
01:36 - Stack and Heap
09:49 - Reachability
13:28 - Reachability Tree
14:12 - With Simple Objects
16:33 - Cyclic Reference
24:37 - Double reference
27:11 - Mark & Sweep
30:03 - Task and Wrap Up
Links Mentioned
MDN Web API List: https://developer.mozilla.org/en-US/d...
V8 Garbage Collection: https://v8.dev/blog/trash-talk
V8 Memory Management: https://v8.dev/blog/optimizing-v8-memory
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Tapas Adhikary is an Educator at tapaScript, a Tech enthusiast, Writer, YouTuber, and maintainer/contributor of open-source projects. He is a full-stack developer with vast experience building SaaS solutions. He is the founder of the ReactPlay platform, which is driven by open-source projects and a fast-growing community.
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#javascript #garbagecollection #memorymanagement #jsperformance #markandsweep #frontendtips #tapascript #JavaScriptDeepDive #WebDevBestPractices
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