indexedDB
indexedDB
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Summary
Provides access to the IndexedDB features supported by the browser and/or device.
Property of dom/window
Syntax
var ixDBHandle = window.indexedDB; window.indexedDB = value;
Return Value
Returns an object of type IDBFactory.
A handle to the IndexedDB "factory," which allows access to IndexedDB features on the current browser/device.
Examples
The following example uses feature detection to determine whether IndexedDB is supported by the current browser/device.
JavaScript
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
For security reasons, Internet Explorer support for the indexedDB property is limited to webpages loaded using the "http://" or "https://" protocols.
Note In pre-release versions of Internet Explorer 10, the indexedDB was accessed using a vendor prefix (msIndexedDB). Such use is considered obsolete; applications using the vendor prefix should be updated to ensure standards-compliance and future compatibility.
Compatibility
Desktop
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic Support | 24 22 -webkit |
16 15 -moz |
10 | ? |
Unsupported |
Mobile
| Feature | Android | BlackBerry | Chrome for mobile | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Opera Mini | Safari Mobile |
|---|---|---|---|---|---|---|---|---|
| Basic Support | Unsupported | ? 10 -webkit |
? | ? 6.0 -moz |
10 | ? | Unsupported | Unsupported |
See also
Related pages (MSDN)
This article contains content originally from external sources.
Portions of this content come from the Microsoft Developer Network: [Windows Internet Explorer API reference Article]
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How to Use
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