https://www.pbainbridge.co.uk/2025/05/create-dynamic-menu-from-content-in.html

Create a dynamic Menu from content in a Google Sheet.gs

/**
 * Generate Menu items based on data in Google Sheet.
 * 
 * Run the Function to display the popup message to the user after selecting one of the Menu items.
 */


// call this Function as soon as the Google Sheet has opened to generate our Menu items
dynamicMenu();


// call this Simple Trigger to initiate the code
function onOpen() { };


function dynamicMenu() {

  // run Function to get Sheet data as JavaScript Object (name:value pairs)
  var sheetData = getSheetData();
  console.log(sheetData);


  // create Menu item in Sheet
  var menu = SpreadsheetApp.getUi().createMenu("Hello there!");

  // loop through Sheet data and add as sub-Menu items
  for (var i = 0; i < sheetData.length; i++) {

    // get array of JavaScript Objects
    var message = sheetData[i];

    // get Language 'name'
    var functionName = "_" + message.name;
    console.log("functionName is: " + functionName);

    // get Message details
    var args = message.args;
    console.log("args is: " + args);

    // use 'this' keyword method to link Menu item name with corresponding Function
    this[functionName] = sayHello(args);

    // add sub-Menu item to main Menu
    menu.addItem(message.name, functionName);

  };

  // finish building onOpen Menu
  menu.addToUi();

};



function sayHello(args) {

  return function () {

    Browser.msgBox(args);

  };

};


/**
 * Get data from 'Data' Sheet and return as JavaScript Object (name:value pairs)
 */

function getSheetData() {

  // create empty array for pushing row data into
  var rowData = [];

  // get Spreadsheet
  var ss = SpreadsheetApp.getActiveSpreadsheet();

  // get Sheet
  var sheet = ss.getSheetByName("Data");

  // get Sheet data
  var sheetData = sheet.getDataRange().getValues();

  // remove Header row
  sheetData.shift();


  // loop through each row, combine into JavaScript Object and push into array
  for (var i = 0; i < sheetData.length; i++) {

    // get single row of data
    var row = sheetData[i];
    console.log(row);

    // extract each column value
    var language = row[0];
    var formal = row[1];
    var informal = row[2];

    // create popup message
    var msg = `"Hello" in ${language} is "${formal}" or "${informal}"`;

    // push values and popup message into array
    rowData.push({
      'name': language,
      'args': msg
    });

  };


  // return array to Parent Function
  return rowData;

};