NonDocumentTypeChildNode.previousElementSibling
The NonDocumentTypeChildNode.previousElementSibling
read-only property returns the Element
immediately prior to the specified one in its parent's children list, or null
if the specified element is the first one in the list.
Syntax
JavaScript
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<var>prevNode</var> = elementNodeReference.previousElementSibling;
Example
HTML
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<div id="div-01">Here is div-01</div> <div id="div-02">Here is div-02</div> <li>This is a list item</li> <li>This is another list item</li> <div id="div-03">Here is div-03</div> <script> var el = document.getElementById('div-03').previousElementSibling; document.write('<p>Siblings of div-03</p><ol>'); while (el) { document.write('<li>' + el.nodeName + '</li>'); el = el.previousElementSibling; } document.write('</ol>'); </script>
This example outputs the following into the page when it loads:
JavaScript
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Siblings of div-03 1. LI 2. LI 3. DIV 4. DIV
Polyfill for Internet Explorer 8
This property is unsupported prior to IE9, so the following snippet can be used to add support to IE8:
JavaScript
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// Source: https://github.com/Alhadis/Snippets/blob/master/js/polyfills/IE8-child-elements.js if(!("previousElementSibling" in document.documentElement)){ Object.defineProperty(Element.prototype, "previousElementSibling", { get: function(){ var e = this.previousSibling; while(e && 1 !== e.nodeType) e = e.previousSibling; return e; } }); }
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'NonDocumentTypeChildNode.previousElementSibling' in that specification. |
Living Standard | Splitted the ElementTraversal interface in ChildNode , ParentNode , and NonDocumentTypeChildNode . This method is now defined on the former.The Element and CharacterData interfaces implemented the new interface. |
Element Traversal Specification The definition of 'ElementTraversal.previousElementSibling' in that specification. |
Recommendation | Added its initial definition to the ElementTraversal pure interface and use it on Element . |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support (on Element ) |
4 | 3.5 (1.9.1) | 9 | 9.8 | 4 |
Support on CharacterData |
29.0 | 25 (25) [1] | Not supported | 16.0 | Not supported |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support (on Element ) |
(Yes) | 1.0 (1.9.1) | (Yes) | 9.8 | (Yes) |
Support on CharacterData |
(Yes) | 25.0 (25) | Not supported | 16.0 | Not supported |
[1] Firefox 25 also added this property to DocumentType
, this was removed in Firefox 28 due to compatibility problems.
See also
- The
NonDocumentTypeChildNode
pure interface. -
Object types implementing this pure interface:
CharacterData
, andElement
.
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/nondocumenttypechildnode/previouselementsibling