monaco-editor/samples/electron-esm-webpack/main.js

const electron = require('electron');
const app = electron.app;
const BrowserWindow = electron.BrowserWindow;

let mainWindow;

function createWindow() {
	mainWindow = new BrowserWindow({
		width: 800,
		height: 600,
		webPreferences: { worldSafeExecuteJavaScript: true }
	});
	mainWindow.loadURL(`file://${__dirname}/dist/electron-index.html`);
	mainWindow.webContents.openDevTools();
	mainWindow.on('closed', function () {
		mainWindow = null;
	});
}

app.on('ready', createWindow);

app.on('window-all-closed', function () {
	if (process.platform !== 'darwin') {
		app.quit();
	}
});

app.on('activate', function () {
	if (mainWindow === null) {
		createWindow();
	}
});