Execute a function right before the process, or the browser's tab, is about to exit.
npm install --save when-exit
import whenExit from 'when-exit';
onExit ( () => {
console.log ( 'Callback 1' );
});
onExit ( () => {
console.log ( 'Callback 2' );
});
const disposer = onExit ( () => {
console.log ( 'Callback 3' );
});
disposer ();
process.exit (); // Callback 1 and 2 are called before exiting
MIT © Fabio Spampinato