electron.js

const electron = require('electron');
// Module to control application life.
const {app} = electron;
// Module to create native browser window.
const {BrowserWindow} = electron;

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let win;

function createWindow() {
    // Create the browser window.
    win = new BrowserWindow({width: 1200, height: 720});

    // and load the index.html of the app.
    win.loadURL(`file://${__dirname}/index.html`);

		// Emitted when the window is closed.
		win.on('closed', () => {
		    // Dereference the window object, usually you would store windows
		    // in an array if your app supports multi windows, this is the time
		    // when you should delete the corresponding element.
		    win = null;
		});
	       }

    // This method will be called when Electron has finished
    // initialization and is ready to create browser windows.
    // Some APIs can only be used after this event occurs.
    app.on('ready', createWindow);

    // Quit when all windows are closed.
    app.on('window-all-closed', () => {
	// 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', () => {
	// 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 (win === null) {
	    createWindow();
	}
    });

    // In this file you can include the rest of your app's specific main process
    // code. You can also put them in separate files and require them here.