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This feature is obsolete.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

JavaScript

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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

HTML

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<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.

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	?	1.0 (1.7 or earlier) 19 (19) (partial)[1] 22 (22)Not supported	?	?	?

Feature	Android	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	?	1.0 (1) 19.0 (19) (partial)[1] 22.0 (22)Not supported	?	?	?

[1] This method will always return true (bug 801425)

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/node/issupported

API DOM Method NeedsBrowserCompatibility NeedsMobileBrowserCompatibility Node Obsolete Reference