indexedDB_creation

React.useEffect(()=>{
      let openRequest = indexedDB.open("testingIndexedDB", 1);
      openRequest.onupgradeneeded = function() {
          // triggers if the client had no database or the client has a higher version
          // ...perform initialization...
          console.log("onupgradeneeded");
          let db = openRequest.result;
          console.log(db)
      };
  
      openRequest.onerror = function() {
          console.error("Error", openRequest.error);
      };
  
      openRequest.onsuccess = function() {
          let db = openRequest.result;
          console.log(db);
          console.log('database is ready');
          // continue to work with database using db object
      };
  },[]);