Node.isSupported()

Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

The Node.isSupported()returns a Boolean flag containing the result of a test whether the DOM implementation implements a specific feature and this feature is supported by the specific node.

Syntax

boolValue = element.isSupported(feature, version)

Parameters

feature
Is a DOMString containing the name of the feature to test. This is the same name which can be passed to the method hasFeature on DOMImplementation. Possible values defined within the core DOM specification are listed on the DOM Level 2 Conformance Section.
version
Is a DOMString containing the version number of the feature to test. In DOM Level 2, version 1, this is the string 2.0. If the version is not specified, supporting any version of the feature will cause the method to return true.

Example

<div id="doc">
</div>

<script>
 // Get an element and check to see if its supports the DOM2 HTML Module.
 var main = document.getElementById('doc');
 var output = main.isSupported('HTML', '2.0');
</script>

Specifications

Specification Status Comment
DOM
The definition of 'Node' in that specification.
Living Standard Removed from the specification.
Document Object Model (DOM) Level 3 Core Specification
The definition of 'Node.isSupported()' in that specification.
Recommendation No change from Document Object Model (DOM) Level 2 Core Specification.
Document Object Model (DOM) Level 2 Core Specification
The definition of 'Node.isSupported()' in that specification.
Recommendation Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support ? Not supported[1] ? ? ?
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? Not supported[1] ? ? ?

[1] This feature was implemented in Gecko 1.0 . Starting with Gecko 19.0 (Firefox 19.0 / Thunderbird 19.0 / SeaMonkey 2.16) this method will always return true (bug 801425) and starting with Gecko 22.0 (Firefox 22.0 / Thunderbird 22.0 / SeaMonkey 2.19) this method has been removed.

See also

  • The Node interface it belongs to.

Document Tags and Contributors

Last updated by: Sebastianz,