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The ParentNode mixin contains methods and properties that are common to all types of Node objects that can have children. It's implemented by Element, Document, and DocumentFragment objects.
See Locating DOM elements using selectors to learn how to use CSS selectors to find nodes or elements of interest.
Properties
ParentNode.childElementCountRead only- Returns the number of children of this
ParentNodewhich are elements. ParentNode.childrenRead only- Returns a live
HTMLCollectioncontaining all of theElementobjects that are children of thisParentNode, omitting all of its non-element nodes. ParentNode.firstElementChildRead only- Returns the first node which is both a child of this
ParentNodeand is also anElement, ornullif there is none. ParentNode.lastElementChildRead only- Returns the last node which is both a child of this
ParentNodeand is anElement, ornullif there is none.
Methods
ParentNode.append()- Inserts a set of
Nodeobjects orDOMStringobjects after the last child of theParentNode.DOMStringobjects are inserted as equivalentTextnodes. ParentNode.prepend()- Inserts a set of
Nodeobjects orDOMStringobjects before the first child of theParentNode.DOMStringobjects are inserted as equivalentTextnodes. ParentNode.querySelector()- Returns the first
Elementwith the current element as root that matches the specified group of selectors. ParentNode.querySelectorAll()- Returns a
NodeListrepresenting a list of elements with the current element as root that matches the specified group of selectors.
Specification
| Specification | Status | Comment |
|---|---|---|
| DOM The definition of 'ParentNode' in that specification. |
Living Standard | Split the ElementTraversal interface into ChildNode and ParentNode. The ParentNode.firstElementChild, ParentNode.lastElementChild, and ParentNode.childElementCount properties are now defined on the latter. Added the ParentNode.children property, and the ParentNode.querySelector(), ParentNode.querySelectorAll(), ParentNode.append(), and ParentNode.prepend() methods. |
| Element Traversal Specification The definition of 'ElementTraversal' in that specification. |
Obsolete | Added the initial definition of its properties to the ElementTraversal pure interface and used it on Element. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 1 | Yes | 3.5 | 9 | 10 | 4 |
Support on Document and DocumentFragment | 29 | ? | 25 | No | 16 | No |
childElementCount | 1 | Yes | 3.5 | 9 | 10 | 4 |
children | 1 | Yes | 3.5 | 91 | 10 | 4 |
firstElementChild | 1 | ? | 3.5 | 9 | 10 | 4 |
lastElementChild | 1 | ? | 3.5 | 9 | 10 | 4 |
append | 54 | 17 | 49 | No | 39 | 10 |
prepend | 54 | 17 | 49 | No | 39 | 10 |
querySelectorAll | 1 | Yes | 3.5 | 92 | 10 | 3.2 |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | Yes | Yes | Yes | 4 | Yes | Yes | Yes |
Support on Document and DocumentFragment | Yes | Yes | ? | ? | ? | No | Yes |
childElementCount | Yes | Yes | Yes | 4 | Yes | Yes | Yes |
children | Yes | Yes | ? | 4 | ? | 10 | Yes |
firstElementChild | Yes | Yes | ? | 4 | Yes | Yes | Yes |
lastElementChild | Yes | Yes | ? | 4 | Yes | Yes | Yes |
append | 54 | 54 | 17 | 49 | 39 | 10.2 | 6.0 |
prepend | 54 | 54 | ? | 49 | 39 | 10 | 6.0 |
querySelectorAll | Yes | Yes | ? | Yes | 10 | 3.2 | Yes |
1. Internet Explorer 6, 7 and 8 supported it, but erroneously includes Comment nodes.
2. Internet Explorer 8 only supported CSS2 selectors.
See also
- The
ChildNodepure interface.