TreeWalker.previousSibling()

The TreeWalker.previousSibling() method moves the current Node to its previous sibling, if any, and returns the found sibling. If there is no such node, return null and the current node is not changed.

Syntax

node = treeWalker.previousSibling();

Example

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

Specifications

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

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support 1Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 9Safari Full support 3WebView Android Full support 3Chrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support 9Safari iOS Full support 3Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also

Document Tags and Contributors

Last updated by: seantunwin,