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    TreeWalker.previousNode()

    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.

    Syntax

    node = treeWalker.previousNode();
    

    Example

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

    Specifications

    Specification Status Comment
    DOM
    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.
    Recommendation Initial definition.

    Browser compatibility

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

    See also

    Document Tags and Contributors

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