IDBDatabase.deleteObjectStore()

As with IDBDatabase.createObjectStore, this method can be called only within a versionchange transaction.

Syntax

db.deleteObjectStore("toDoList");

Returns

Void.

Exceptions

This method may raise a DOMException  of one of the following types:

Example

In this example we open a database then, in the onupdateneeded event handler, create a new object store using IDBDatabase.createObjectStore. At the end of the block we then delete that object store again using deleteObjectStore().

  // Let us open our database
  var DBOpenRequest = window.indexedDB.open("toDoList", 4);
 
  // This event handles the event whereby a new version of the database needs to be created
  // Either one has not been created before, or a new version number has been submitted via the
  // window.indexedDB.open line above
  //it is only implemented in recent browsers
  DBOpenRequest.onupgradeneeded = function(event) {
    var db = event.target.result;
    
    db.onerror = function(event) {
      note.innerHTML += '<li>Error loading database.</li>';
    };

    // Create an objectStore for this database
    
    var objectStore = db.createObjectStore("toDoList", { keyPath: "taskTitle" });
    
    // define what data items the objectStore will contain
    
    objectStore.createIndex("hours", "hours", { unique: false });
    objectStore.createIndex("minutes", "minutes", { unique: false });
    objectStore.createIndex("day", "day", { unique: false });
    objectStore.createIndex("month", "month", { unique: false });
    objectStore.createIndex("year", "year", { unique: false });

    objectStore.createIndex("notified", "notified", { unique: false });
    
    note.innerHTML += '<li>Object store created.</li>';

    // Delete the object store again!

    db.deleteObjectStore("toDoList");
  };

Parameters

name

The name of the data store to delete.

Specification

Browser compatibility

See also

• Using IndexedDB
• Starting transactions: IDBDatabase
• Using transactions: IDBTransaction
• Setting a range of keys: IDBKeyRange
• Retrieving and making changes to your data: IDBObjectStore
• Using cursors: IDBCursor
• Reference example: To-do Notifications (view example live.)