Northernside/index.html

## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Hello World!</title>
  </head>
  <body>
    <h1>Hello World!</h1>

    <button id="test">Test</button>

    <script src="./renderer.js"></script>
  </body>
</html>

## main.js
const {app, ipcMain, BrowserWindow} = require('electron');

function createWindow () {
  const mainWindow = new BrowserWindow({
    width: 800,
    height: 600,
    webPreferences: {
      nodeIntegration: false,
      contextIsolation: true,
      preload: __dirname + '/preload.js'
    }
  });

  mainWindow.loadFile('index.html')
}

ipcMain.handle('example', () => { // If our code gets the 'example' message then do the following:
  console.log('figgo');
});

app.whenReady().then(createWindow);

app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') {
    app.quit();
  }
});

app.on('activate', function () {
  if (BrowserWindow.getAllWindows().length === 0) {
    createWindow();
  }
});

## preload.js
const { contextBridge, ipcRenderer } = require("electron");

contextBridge.exposeInMainWorld('msg', {
  'example': () => {
    return ipcRenderer.invoke('example');
  }
});

## renderer.js
document.getElementById('test').addEventListener('click', () => {
    if(window.msg) {
        window.msg.example();
    }
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">
	<title>Hello World!</title>
	</head>
	<body>
	<h1>Hello World!</h1>

	<button id="test">Test</button>

	<script src="./renderer.js"></script>
	</body>
	</html>
	const {app, ipcMain, BrowserWindow} = require('electron');

	function createWindow () {
	const mainWindow = new BrowserWindow({
	width: 800,
	height: 600,
	webPreferences: {
	nodeIntegration: false,
	contextIsolation: true,
	preload: __dirname + '/preload.js'
	}
	});

	mainWindow.loadFile('index.html')
	}

	ipcMain.handle('example', () => { // If our code gets the 'example' message then do the following:
	console.log('figgo');
	});

	app.whenReady().then(createWindow);

	app.on('window-all-closed', function () {
	if (process.platform !== 'darwin') {
	app.quit();
	}
	});

	app.on('activate', function () {
	if (BrowserWindow.getAllWindows().length === 0) {
	createWindow();
	}
	});
	const { contextBridge, ipcRenderer } = require("electron");

	contextBridge.exposeInMainWorld('msg', {
	'example': () => {
	return ipcRenderer.invoke('example');
	}
	});
	document.getElementById('test').addEventListener('click', () => {
	if(window.msg) {
	window.msg.example();
	}
	});