index.js

const {app, BrowserWindow} = require('electron');

let mainWindow;

function createWindow() {
	mainWindow = new BrowserWindow({
		width: 1200,
		height: 768,
	});

	mainWindow.loadFile('./build/index.html');

	// mainWindow.webContents.openDevTools();

	mainWindow.on('closed', function () {
		mainWindow = null;
	});
}

app.on('ready', () => {
	// require('vue-devtools').install();

	createWindow();
});

app.on('window-all-closed', function () {
	// On OS X it is common for applications and their menu bar
	// to stay active until the user quits explicitly with Cmd + Q
	if (process.platform !== 'darwin') {
		app.quit();
	}
});

app.on('activate', function () {
	// On OS X it's common to re-create a window in the app when the
	// dock icon is clicked and there are no other windows open.
	if (mainWindow === null) {
		createWindow();
	}
});