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Documentation for queryAssignedNodes #1374

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10 changes: 9 additions & 1 deletion packages/lit-dev-content/site/docs/v3/components/shadow-dom.md
Original file line number Diff line number Diff line change
Expand Up @@ -187,7 +187,15 @@ get _slottedChildren() {
}
```

You can also use the `slotchange` event to take action when the assigned nodes change.
{% aside "info" %}

The elements are assigned only after the slot is rendered.

If you need to access assigned elements at startup, you need to wait for `firstUpdated` or `updated`. If you want to access assigned elements when your render changes, you can use `slotchange`.

{% endaside %}

You can use the `slotchange` event to take action when nodes are first assigned or change.
The following example extracts the text content of all of the slotted children.

```js
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