Remove empty rows from Google Sheets (Gsheets)

removeEmptyRows.js

function onInstall(e){
 onOpen(e); 
}

function onOpen(e){
  var menu = SpreadsheetApp.getUi().createAddonMenu();
  menu.addItem('Remove Empty Rows', 'removeEmptyRows'); 
  menu.addToUi();
}

function removeEmptyRows() {
  
  showAlert('start');
    SpreadsheetApp.getActive()
        .getSheets()
        .forEach(function (s) {
            c = 0;
            s.getRange(1, 1, s.getMaxRows(), s.getMaxColumns())
                .getValues()
                .forEach(function (r, j) {
                    if (r.toString()
                        .replace(/,/g, "")
                        .length == 0) {
                        s.deleteRow((j += 1) - c)
                        c += 1;
                    }
                })
        })
    showAlert('end');
}

function showAlert(locator){
 var ui = SpreadsheetApp.getUi();
  if (locator == 'start'){
    ui.alert('Empty rows will be deleted. Please leave the sheet open until the process completes.\nPress ok to continue.!');
  }
  if (locator == 'end'){
    ui.alert('Empty rows removed.');
  }
}