Glossary term
What is thread pool? Meaning for developers
A small group of helper threads (four by default) that libuv uses for file system calls, DNS lookups and some crypto and zlib work.
Learn it properly · Node.js From ZeroLesson 0: What Node.js Is and How It Runs Your CodeV8, libuv and the runtime, the single thread and what it means, modules (ESM and CommonJS), npm, and running your first script.