我如何将数据发送到 electron window？

Question

const { app, BrowserWindow } = require('electron')
function createWindow () {

let window = new BrowserWindow({
        width: 1080,
        height: 1080,
        webPreferences: {
            nodeIntegration: true
        }
    })

    window.loadFile('index.html', )
}

app.whenReady().then(createWindow)

我有这段代码，然后我有另一个有时会触发的事件，例如：

var.on("event", (param) => {
 
    // here i wanna somehow send some of the data from the param to localstorage in electron
})