puppeteer/new-docs/puppeteer.protocol.dom.childnodecountupdatedevent.md

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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [Protocol](./puppeteer.protocol.md) &gt; [DOM](./puppeteer.protocol.dom.md) &gt; [ChildNodeCountUpdatedEvent](./puppeteer.protocol.dom.childnodecountupdatedevent.md)
## Protocol.DOM.ChildNodeCountUpdatedEvent interface
Fired when `Container`<!-- -->'s child node count has changed.
<b>Signature:</b>
```typescript
export interface ChildNodeCountUpdatedEvent
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [childNodeCount](./puppeteer.protocol.dom.childnodecountupdatedevent.childnodecount.md) | [integer](./puppeteer.protocol.integer.md) | New node count. |
| [nodeId](./puppeteer.protocol.dom.childnodecountupdatedevent.nodeid.md) | [NodeId](./puppeteer.protocol.dom.nodeid.md) | Id of the node that has changed. |