---
url: /api/core/types/utils/function-is-class.md
description: api documentation of isClass from @tsed/core
---

## Usage

```typescript
import { isClass } from "@tsed/core";
```

> See [/packages/core/src/utils/isClass.ts](https://github.com/tsedio/tsed/blob/v8.37.1/packages/core/src/utils/isClass.ts#L0-L0).

## Overview

```ts
function isClass(target: any): boolean;
```

## Description

Determines whether a given value represents a class (constructor function).

This helper filters out common non-class values such as primitives, symbols,
plain objects, dates, promises, arrays, buffers, and arrow functions.