Node.js is a single threaded language which in background uses multiple threads to execute asynchronous code. Node.js is non-blocking which means that all functions ( callbacks ) are delegated to the event loop and they are ( or can be ) executed by different threads. That is handled by Node.js run-time.
1. Nodejs Primary application runs in an event loop, which is in a single thread.
2. Background I/O is running in a thread pool that is only accessible to C/C++ or other compiled/native modules and mostly transparent to the JS.
3. Node v11/12 now has experimental worker_threads, which is another option.
4. Node.js does support forking multiple processes ( which are executed on different cores ).
5. It is important to know that state is not shared between master and forked process.
6. We can pass messages to forked process ( which is different script ) and to master process from forked process with function send.
Posted Date:- 2021-08-27 14:15:40
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