Tip: Understanding JS memory management changed the way I code

[u/ratheshprabakar]

Quick tip for anyone working with JavaScript (frontend or Node):
Most of us think JS doesn’t handle memory well. I did too — until I learned how it actually manages memory.

Key takeaways:

• How stack vs heap works

• What reachability means

• Why the Mark-and-Sweep algorithm matters

• Why circular refs don’t necessarily cause leaks

• Common patterns that cause real leaks (timers, event listeners, global refs)

If you’d like the full breakdown with examples and explanations in plain English:
https://medium.com/@ratheshprabakar/i-was-completely-wrong-about-javascript-memory-management-until-i-learned-this-8e3cae6983b8