Execute a function right before the process, or the browser's tab, is about to exit.
npm install when-exitimport whenExit from 'when-exit';
// Registering multiple callbacks
onExit ( () => {
console.log ( 'Callback 1' );
});
onExit ( () => {
console.log ( 'Callback 2' );
});
// Registering and disposing a callback
const disposer = onExit ( () => {
console.log ( 'Callback 3' );
});
disposer ();
// Triggering the process to exit
process.exit (); // Callback 1 and 2 are called before exitingMIT © Fabio Spampinato