electron-platform/test/fixtures/app/main.js

Platform detection for Electron and Web Browser

const {app, BrowserWindow} = require('electron');
const platform = require('../../../index.js');

global.platform = platform;
let mainWindow = null;

app.on('ready', function () {
  mainWindow = new BrowserWindow({
    center: true,
    width: 800,
    height: 600
  });
  mainWindow.loadURL('file://' + __dirname + '/index.html');
  mainWindow.on('closed', () => {
    mainWindow = null;
  });
});