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JS Memory Management

Garbage collection

Reference-counting garbage collection

no modern JavaScript engine uses reference-counting for garbage collection anymore.

Mark-and-sweep algorithm

Configuring an engine’s memory model

node --max-old-space-size=6000 index.js
node --expose-gc --inspect index.js

Data structures aiding memory management

WeakMaps and WeakSets
WeakRefs and FinalizationRegistry

Reference

• Memory management

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