signal-exit

   

When you want to fire an event no matter how a process exits:

• reaching the end of execution.
• explicitly having process.exit(code) called.
• having process.kill(pid, sig) called.
• receiving a fatal signal from outside the process

Use signal-exit.

js
var onExit = require('signal-exit')

onExit(function (code, signal) {
  console.log('process exited!')
})

API

var remove = onExit(function (code, signal) {}, options)

The return value of the function is a function that will remove the handler.

Note that the function *only* fires for signals if the signal would cause the process to exit. That is, there are no other listeners, and it is a fatal signal.

Options

• alwaysLast: Run this handler after any other signal or exit handlers. This causes process.emit to be monkeypatched.