---
id: fast-foundation.applymixins
title: applyMixins() function
hide_title: true
---
<!-- Do not edit this file. It is automatically generated by API Documenter. -->

[@microsoft/fast-foundation](./fast-foundation.md) &gt; [applyMixins](./fast-foundation.applymixins.md)

## applyMixins() function

Apply mixins to a constructor. Sourced from [TypeScript Documentation](https://www.typescriptlang.org/docs/handbook/mixins.html)<!-- -->.

<b>Signature:</b>

```typescript
export declare function applyMixins(derivedCtor: any, ...baseCtors: any[]): void;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  derivedCtor | any |  |
|  baseCtors | any\[\] |  |

<b>Returns:</b>

void
