JavaScript: The Definitive Guide

2017-07-07 02:10:07

25.215. Node.isSupported( ): determine if a node supports a feature

DOM Level 2 Core

25.215.1. Synopsis

boolean isSupported(String feature, String version);

25.215.1.1. Arguments

feature: The name of the feature to test.
version: The version number of the feature to test, or the empty string to test for support of any version of the feature.

25.215.1.2. Returns

true if the node supports the specified version of the specified feature, and false if it does not.

25.215.2. Description

The W3C DOM standard is modular, and implementations are not required to implement all modules or features of the standard. This method tests whether the implementation of this node supports the specified version of the named feature. See DOMImplementation.hasFeature( ) for a list of values for the feature and version arguments.

25.215.3. See Also

DOMImplementation.hasFeature( )