The exit codes of Node.js
Exit codes give us an idea of how a process got terminated/the reason behind termination.
A few of them are:
Uncaught fatal exception - (code - 1) - There has been an exception that is not handled
Unused - (code - 2) - This is reserved by bash
Fatal Error - (code - 5) - There has been an error in V8 with stderr output of the description
Internal Exception handler Run-time failure - (code - 7) - There has been an exception when bootstrapping function was called
Internal JavaScript Evaluation Failure - (code - 4) - There has been an exception when the bootstrapping process failed to return function value when evaluated