The NodeIterator.filter read-only method returns a NodeFilter object, that is an object implement an acceptNode(node) method, used to screen nodes.

When creating the NodeIterator, the filter object is passed in as the third parameter, and the object method acceptNode(node) is called on every single node to determine whether or not to accept it. This function should return the constant NodeFilter.FILTER_ACCEPT for cases when the node should be accepted and NodeFilter.FILTER_REJECT for cases when the node should be rejected.


nodeFilter = nodeIterator.filter;


var nodeIterator = document.createNodeIterator(
    { acceptNode: function(node) { return NodeFilter.FILTER_ACCEPT; } },
nodeFilter = nodeIterator.filter;


Specification Status Comment
The definition of 'NodeIterator.filter' in that specification.
Living Standard No change from Document Object Model (DOM) Level 2 Traversal and Range Specification.
Document Object Model (DOM) Level 2 Traversal and Range Specification
The definition of 'NodeIterator.filter' in that specification.
Obsolete Initial definition.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
filterChrome Full support 1Edge Full support 12Firefox Full support 3.5IE Full support 9Opera Full support 9Safari Full support 3WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support 10.1Safari iOS Full support 3Samsung Internet Android Full support Yes


Full support  
Full support

See also

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