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/DOM

Node.isDefaultNamespace

The Node.isDefaultNamespace() method accepts a namespace URI as an argument and returns a Boolean with a value of true if the namespace is the default namespace on the given node or false if not.

Syntax

result = node.isDefaultNamespace(namespaceURI) 
  • result holds the return value true or false.
  • namespaceURI is a string representing the namespace against which the element will be checked.

Example

var XULNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
var el = document.getElementsByTagNameNS(XULNS, 'textbox')[0];

alert(el.isDefaultNamespace(XULNS)); // true

Specification

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Node/isDefaultNamespace