text: const {app, BrowserWindow} = require('electron');
  const path = require('path');
  const url = require('url');
  
  let win;
  
  function createWindow () {
    win = new BrowserWindow({
        width: 800, 
        height: 600
    });
  
    win.loadURL(url.format({
      pathname: path.join(__dirname, 'app/index.html'),
      protocol: 'file:',
      slashes: true
    }));
  
    //win.webContents.openDevTools();
  
    win.on('closed', () => {
      win = null
    });
  }
  
  app.on('ready', createWindow);
  
  app.on('window-all-closed', () => {
    if (process.platform !== 'darwin') {
      app.quit()
    }
  });
  
  app.on('activate', () => {
    if (win === null) {
      createWindow()
    }
  });