JS: isElectron ?

is_electron.js

    var isElectron = (window && window.process && window.process.type === 'renderer');
    if (isElectron) {
      // keep Electron's require so we can load its modules
      window.electronRequire = window.require;
      window.electronModule = window.module;
      // clear window.require so Ember can load if wrapped in Electron
      // issue explained on https://github.com/atom/electron/issues/303
      window.require = undefined;
      window.module = undefined;
    }