[@rxap/form-system](../wiki/globals) / UseIsValueFunction

# Function: UseIsValueFunction()

## Call Signature

> **UseIsValueFunction**(`fnc`): `any`

Defined in: [packages/angular/form-system/src/lib/mixins/extract-is-value-function.mixin.ts:15](https://gitlab.com/rxap/packages/-/blob/36b0e9732b24717840935712e316593ff6aba795/packages/angular/form-system/src/lib/mixins/extract-is-value-function.mixin.ts#L15)

### Parameters

#### fnc

[`UseFunctionType`](../wiki/TypeAlias.UseFunctionType)\<\[`any`\], `boolean`\>

### Returns

`any`

## Call Signature

> **UseIsValueFunction**(`fnc`, `config`): `any`

Defined in: [packages/angular/form-system/src/lib/mixins/extract-is-value-function.mixin.ts:18](https://gitlab.com/rxap/packages/-/blob/36b0e9732b24717840935712e316593ff6aba795/packages/angular/form-system/src/lib/mixins/extract-is-value-function.mixin.ts#L18)

### Parameters

#### fnc

[`UseFunctionType`](../wiki/TypeAlias.UseFunctionType)\<`any`[], `any`\>

#### config

[`UseFunctionConfig`](../wiki/Interface.UseFunctionConfig)\<`boolean`, `any`[], `any`, \[`any`\]\>

### Returns

`any`