# isFunction

# Function: isFunction()

```ts
function isFunction<T>(value): value is T;
```

Defined in: [utils.ts:3](https://github.com/TanStack/pacer/blob/main/packages/pacer/src/utils.ts#L3)

## Type Parameters

### T

`T` *extends* [`AnyFunction`](../type-aliases/AnyFunction.md)

## Parameters

### value

`any`

## Returns

`value is T`