Electronメニュー作成例

const { app, BrowserWindow, Menu, dialog } = require('electron')

function createWindow(){
	const w = new BrowserWindow({
		width: 320,
		height: 480,
		webPreferences: {
			nodeIntergration: false
		}
	})
	w.loadFile('index.html')
}

function createMenu(){
	const m = [
		{
			label: 'File',
			submenu: [
				{ role: 'close'},
				{ type: 'separator'},
				{ label: 'Quit', click: quitFunc }
			]
		},
		{
			label: 'About', click: aboutFunc
		}
	]
	const menu = Menu.buildFromTemplate(m)
	Menu.setApplicationMenu(menu)
}

function quitFunc(){
	app.quit()
}

function aboutFunc(){
	const w = BrowserWindow.getFocusedWindow()
	dialog.showMessageBox(w, {
		title: 'About this...',
		message: 'Made with Electron!',
		detail: 'Electron is a framework for building desktop applications using JavaScript, HTML, and CSS. '
	})
}

createMenu()

app.whenReady().then(createWindow)