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.


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.


var XULNS = "";
var el = document.getElementsByTagNameNS(XULNS, 'textbox')[0];

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


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Last updated by: chrisdavidmills,