Electron not working in a separate .js file but works fine in index.html

  electron, html, javascript

I am using the Electron quick start and when I put my own script into the index.html inside of , the application works fine but when I move it into main.js, it doesn’t function.

The example below is what I tried and isn’t working. However if I move the last part of the javascript from the main.js file and put it into the index.html file in between , the app works.

Index.html

<html>
<head>
  <link rel="stylesheet" href="mystyle.css">
</head>
<body>



  <div class="kokuban-t1"><span class="title-t1">Title</span>  <p>Text</p>

    

<br>
    

    
 <form id="form" onsubmit="return false;">
  
<input style=top:20%;width:20%; type="number" min=0 id="xrpNumber">
   <br>
   <br>
<input id="submitbutton"; value="Check"; style=top:50%;width:20%; class=button type="submit" onclick="mySimpFunction()">

 </form>

 </div>


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

</html>

main.js

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

function createWindow () {
  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 1000,
    height: 720,
    minWidth: 800,
    minHeight: 560,
    title: "Flare Calculator",
    webPreferences: {
      preload: path.join(__dirname, 'preload.js')
    }
  })

  // and load the index.html of the app.
  mainWindow.loadFile('index.html')

  // Open the DevTools.
  mainWindow.webContents.openDevTools()
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
  createWindow()

  app.on('activate', function () {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (BrowserWindow.getAllWindows().length === 0) createWindow()
  })
})

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') app.quit()
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.




function mySimpFunction() {
//my script
}

Source: Ask Javascript Questions

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