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Understanding Garbage Collection by Building a Simple One

Step-by-step tutorial on building a Mark-and-Sweep Garbage Collector in TypeScript. Learn root references, reachability graphs, and memory sweeps.

Sachin Sharma
Sachin SharmaCreator
Aug 6, 2026
3 min read
Understanding Garbage Collection by Building a Simple One
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Step-by-step tutorial on building a Mark-and-Sweep Garbage Collector in TypeScript. Learn root references, reachability graphs, and memory sweeps.

Garbage CollectionMemory ManagementCompilersTypeScriptLanguages
Sachin Sharma

Sachin Sharma

Software Developer & Mobile Engineer

Building digital experiences at the intersection of design and code. Sharing weekly insights on engineering, productivity, and the future of tech.

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