---
id: fast-element.controller.addbehaviors
title: Controller.addBehaviors() method
hide_title: true
---
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[@microsoft/fast-element](./fast-element.md) &gt; [Controller](./fast-element.controller.md) &gt; [addBehaviors](./fast-element.controller.addbehaviors.md)

## Controller.addBehaviors() method

Adds behaviors to this element.

<b>Signature:</b>

```typescript
addBehaviors(behaviors: ReadonlyArray<Behavior>): void;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  behaviors | ReadonlyArray&lt;[Behavior](./fast-element.behavior.md)<!-- -->&gt; | The behaviors to add. |

<b>Returns:</b>

void
