indexedDB-post-3.js

request.onupgradeneeded = function(e) {
  console.log ("going to upgrade our DB!");
  
  todoDB.indexedDB.db = e.target.result;
  var db = todoDB.indexedDB.db;
  if(db.objectStoreNames.contains("todo")) {
    db.deleteObjectStore("todo");
  }

  var store = db.createObjectStore("todo",
  {keyPath: "timeStamp"});

  todoDB.indexedDB.getAllTodoItems();
}