The MutationObserverInit
dictionary's optional childList
property indicates whether or not to monitor the specified node or nodes for the addition or removal of new child nodes.
If childList
is false
(the default), adding or removing new nodes does not trigger mutation callbacks. By setting childList
to true
, your callback will be invoked any time nodes are added to or removed from the DOM node or nodes being watched.
Syntax
var options = { childList: true | false }
Value
A Boolean value indicating whether or not to invoke the callback function when new nodes are added to or removed from the section of the DOM being monitored.. If subtree
is false
, only the node indicated by the observer's target node is monitored for changes. Setting subtree
to true
causes addition or removal of nodes anywhere within the subtree rooted at target
to be reported.
Example
Specifications
Specification | Status | Comment |
---|---|---|
DOM The definition of 'MutationObserverInit.childList' in that specification. |
Living Standard |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
childList | Chrome
Full support
26
| Edge Full support 12 | Firefox Full support 14 | IE Full support 11 | Opera Full support 15 | Safari
Full support
7
| WebView Android ? | Chrome Android
Full support
26
| Firefox Android Full support 14 | Opera Android Full support 14 | Safari iOS
Full support
7
| Samsung Internet Android
Full support
1.5
|
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
- Requires a vendor prefix or different name for use.
- Requires a vendor prefix or different name for use.