---
id: fast-element.slottedbehavior.observe
title: SlottedBehavior.observe() method
hide_title: true
---
<!-- Do not edit this file. It is automatically generated by API Documenter. -->

[@microsoft/fast-element](./fast-element.md) &gt; [SlottedBehavior](./fast-element.slottedbehavior.md) &gt; [observe](./fast-element.slottedbehavior.observe.md)

## SlottedBehavior.observe() method

Begins observation of the nodes.

<b>Signature:</b>

```typescript
observe(): void;
```
<b>Returns:</b>

void
