---
id: fast-components.directionalstylesheetbehavior._constructor_
title: DirectionalStyleSheetBehavior.(constructor)
hide_title: true
---
<!-- Do not edit this file. It is automatically generated by API Documenter. -->

[@microsoft/fast-components](./fast-components.md) &gt; [DirectionalStyleSheetBehavior](./fast-components.directionalstylesheetbehavior.md) &gt; [(constructor)](./fast-components.directionalstylesheetbehavior._constructor_.md)

## DirectionalStyleSheetBehavior.(constructor)

Constructs a new instance of the `DirectionalStyleSheetBehavior` class

<b>Signature:</b>

```typescript
constructor(ltr: ElementStyles | null, rtl: ElementStyles | null);
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  ltr | [ElementStyles](./fast-element.elementstyles.md) \| null |  |
|  rtl | [ElementStyles](./fast-element.elementstyles.md) \| null |  |
