react-stock-heatmap/example/electron.js

const { app, BrowserWindow } = require('electron');
const path = require('path');

function createWindow() {
  const mainWindow = new BrowserWindow({
    width: 1600,
    height: 900,
    webPreferences: {
      nodeIntegration: false,
      contextIsolation: true
    },
  });

  mainWindow.loadFile('index.html');
}

app.on('ready', createWindow);

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

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