Autosort button script for Google Sheets

Code.gs

function resort(tableRange, columnToSortBy){
  var sheet = SpreadsheetApp.getActiveSheet();

  var range = sheet.getRange(tableRange);
  range.sort( { column : columnToSortBy, ascending: false } );
}

// just a wrapper; timestamp is just anti-cacheing trick
function myGetRangeByName(n, timestamp) {  
 var sheet = SpreadsheetApp.getActiveSpreadsheet();
 return sheet.getRangeByName(n).getA1Notation();
}

function resort_projects(){
 // Date() just introduces a cacheing-resistent parameter, to force sheets to recheck result of that function
 var tableRange = myGetRangeByName("projects", Date());
 var columnToSortBy = 5;
 resort(tableRange, columnToSortBy)
}