Google Apps Script - Delete all the data in the scriptdb database of a google script

gistfile1.js

// #GoogleAppsScript #Gscript #GoogleSpreadsheet
//from google help page : https://developers.google.com/apps-script/scriptdb

function deleteAll() {
   var db = ScriptDb.getMyDb();
   while (true) {
     var result = db.query({}); 
     if (result.getSize() == 0) {
       break;
     }
     while (result.hasNext()) {
       db.remove(result.next());
     }
   }
}