Specify parameters for menu functions

Question

This is a snippet in the Google Apps Script for adding a menu in Google Docs/Forms/Sheets. As stated in the Menu#addItem method it calls the menuItem2

Answer 1

You can't add parameters to functions called by a menu.

A simple workaround is to store parameters elsewhere (in scriptProperties for example) and read these parameters if parameter is undefined.

function menuItem2(PARAMETER) {
  // if PARAMETER is undefined then read default parameter in scriptProperties
  // codes    
}

In this configuration you can call the menuItem2 function from elsewhere in the script using a "normal" parameter and it will be handled as expected.