const electron = require('electron') const app = electron.app const BrowserWindow = electron.BrowserWindow const path = require('path') const isDev = require('electron-is-dev') let mainWindow function createWindow () { mainWindow = new BrowserWindow({ width: 800, height: 600, resizable: false, webPreferences: { nodeIntegration: true } }) mainWindow.loadURL( isDev ? 'http://localhost:3000' : `file: