while the particular effectiveness of a runtime's GC is determined by the VM, JS the language doesn't provide operators or types to represent manual memory mana

while the particular effectiveness of a runtime's GC is determined by the VM, JS the language doesn't provide operators or types to represent manual memory management - so it's a pretty core feature of the language that whatever VM it runs on will use garbage collection (or at the very least transparent automatic memory management) to reclaim memory.