The TreeWalker.previousNode() method moves the current Node to the previous visible node in the document order, and returns the found node. It also moves the current node to this one. If no such node exists,or if it is before that the root node defined at the object construction, returns null and the current node is not changed.


node = treeWalker.previousNode();


var treeWalker = document.createTreeWalker(
    { acceptNode: function(node) { return NodeFilter.FILTER_ACCEPT; } },
var node = treeWalker.previousNode(); // returns null as there is no parent


Specification Status Comment
The definition of 'TreeWalker.previousNode' 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 'TreeWalker.previousNode' in that specification.
Obsolete Initial definition.

Browser compatibility

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Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 1.0 (Yes) 2.0 (1.8.1) 9.0 9.0 3.0
Feature Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) 1.0 (1.8.1) (Yes) 9.0 3.0

See also

Document Tags and Contributors

 Contributors to this page: erikadoyle, teoli, kollishivagangadhar, vishu_gawli
 Last updated by: erikadoyle,