Run a piece of code whenever the javascript-process stops/exits/quits. On browsers, nodejs, electron, react-native, .net-core. It also ensures that the exit-function is called only once.
You should use this module when your write a npm-library where you dont know in which environments the users will run it.
When nodejs:
process.on('beforeExit')
process.on('exit')
process.on('SIGINT')
process.on('uncaughtException')
When browser:
window.addEventListener('beforeunload')
When electron:
app.on('window-all-closed')
Installation:
npm install unload --save
Add a function which runs when the process exits:
var unload = require('unload');
unload.add(function(){
console.log('Ouch, I\'m dying.');
});
Add and remove the function (It will no longer run when the process exits):
var unload = require('unload');
var stopListen = unload.add(function(){
console.log('Ouch, I\'m dying.');
});
stopListen(); // removes the event-listeners
Run all previously added functions:
var unload = require('unload');
unload.add(function(){
console.log('Ouch, I\'m dying.');
});
unload.runAll();
Remove all added functions (They will no longer run when the process exits):
var unload = require('unload');
unload.add(function(){
console.log('Ouch, I\'m dying.');
});
unload.removeAll();