IDBFactory

Summary

The object type for the indexedDB property, which provides access to the IndexedDB features supported by the browser and/or device.

Properties

No properties.

Methods

cmp: This method compares two specified keys. Returns 1 if the first key is greater than the second, -1 if the first is less than the second, and 0 if the first is equal to the second.
deleteDatabase: Deletes a database with the specified name.
open: The open method is used to open an IndexedDB database.

Events

No events.

Examples

The following example uses feature detection to determine whether IndexedDB is supported by the current browser/device.

function getIndexedDBHandle() {
   var oResult = null;
   if ( window.indexedDB ) {
      oResult = window.indexedDB;
   } else if ( window.mozIndexedDB ) {
      oResult = window.mozIndexedDB;
   } else if ( window.webkitIndexedDB ) {
      oResult = window.webkitIndexedDB;
   }
   return oResult;
}

var ixHandle = getIndexedDBHandle();
if ( getIndexHandle == null ) {
   doFallback();
} else {
   doIndexedDBWork(};
}

Notes

Remarks

Use the indexedDB property to access IndexedDB databases.

Important For security reasons, Internet Explorer support for the indexedDB property is limited to webpages loaded using the “http://” or “https://” protocols.

Related specifications

W3C IndexedDB Specification: W3C Proposed Recommendation

Attributions

Microsoft Developer Network: [Windows Internet Explorer API reference Article]