Garbage Collection
Garbage Collection
Section titled “Garbage Collection”Introduction
Section titled “Introduction”Garbage collection (GC) is automatic memory management. JavaScript engines periodically find and free memory that is no longer reachable.
Learning Objectives
Section titled “Learning Objectives”- Understand the mark-and-sweep algorithm
- Learn V8’s generational GC approach
- Identify what causes memory leaks
- Apply best practices to help the GC
Topics Covered
Section titled “Topics Covered”| Topic | Description | Est. Time |
|---|---|---|
| Mark-and-Sweep | The core GC algorithm | 15 min |
| Generational GC | V8’s young/old generation strategy | 15 min |
| Common Leaks | What prevents GC from working | 10 min |
Prerequisites
Section titled “Prerequisites”- Memory management basics
- Understanding of object references
- Scope and closures
Learning Path
Section titled “Learning Path”Mark-and-Sweep → Generational GC → Common Leaks