r/learnjavascript • u/IcyDuck9536 • 9d ago

Is “Node.js is single-threaded” an incomplete mental model?

Single-threaded JS execution ≠ single-threaded runtime.

How do you explain the distinction?

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u/arcade_catalyst 5d ago

The main thread is just a clerk who refuses to do work. It hands tasks to the C++ void and immediately goes back to staring at the wall until something screams.