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

# Class: ExtractFunctionMixin

Defined in: [packages/angular/form-system/src/lib/mixins/extract-function.mixin.ts:12](https://gitlab.com/rxap/packages/-/blob/36b0e9732b24717840935712e316593ff6aba795/packages/angular/form-system/src/lib/mixins/extract-function.mixin.ts#L12)

## Extends

- [`ExtractFunctionsMixin`](../wiki/Class.ExtractFunctionsMixin)

## Extended by

- [`ExtractIsValueFunctionMixin`](../wiki/Class.ExtractIsValueFunctionMixin)
- [`ExtractToDisplayFunctionMixin`](../wiki/Class.ExtractToDisplayFunctionMixin)

## Constructors

### new ExtractFunctionMixin()

> **new ExtractFunctionMixin**(): [`ExtractFunctionMixin`](../wiki/Class.ExtractFunctionMixin)

#### Returns

[`ExtractFunctionMixin`](../wiki/Class.ExtractFunctionMixin)

#### Inherited from

[`ExtractFunctionsMixin`](../wiki/Class.ExtractFunctionsMixin).[`constructor`](../wiki/Class.ExtractFunctionsMixin#constructors)

## Properties

### injector

> `protected` **injector**: `Injector`

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

## Methods

### extractFunction()

> **extractFunction**\<`Args`, `Result`\>(`defaultFunction`, `formDefinition`, `controlId`, `name`): [`UseFunctionType`](../wiki/TypeAlias.UseFunctionType)\<`Args`, `Result`\>

Defined in: [packages/angular/form-system/src/lib/mixins/extract-function.mixin.ts:20](https://gitlab.com/rxap/packages/-/blob/36b0e9732b24717840935712e316593ff6aba795/packages/angular/form-system/src/lib/mixins/extract-function.mixin.ts#L20)

#### Type Parameters

• **Args** *extends* `any`[]

• **Result**

#### Parameters

##### defaultFunction

`null` | [`UseFunctionType`](../wiki/TypeAlias.UseFunctionType)\<`Args`, `Result`\>

##### formDefinition

`FormDefinition`

##### controlId

`string`

##### name

`string`

#### Returns

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

***

### extractFunctions()

> `protected` **extractFunctions**(`defaultMap`, `formDefinition`, `controlId`): `Map`\<`string`, [`UseFunctionDefinition`](../wiki/Interface.UseFunctionDefinition)\<`unknown`, `any`[], [`UseFunctionConfig`](../wiki/Interface.UseFunctionConfig)\<`unknown`, `any`[], `any`, `any`[]\>\>\>

Defined in: [packages/angular/form-system/src/lib/mixins/extract-functions.mixin.ts:43](https://gitlab.com/rxap/packages/-/blob/36b0e9732b24717840935712e316593ff6aba795/packages/angular/form-system/src/lib/mixins/extract-functions.mixin.ts#L43)

#### Parameters

##### defaultMap

`null` | `Map`\<`string`, [`UseFunctionDefinition`](../wiki/Interface.UseFunctionDefinition)\<`unknown`, `any`[], [`UseFunctionConfig`](../wiki/Interface.UseFunctionConfig)\<`unknown`, `any`[], `any`, `any`[]\>\>\>

##### formDefinition

`FormDefinition`

##### controlId

`string`

#### Returns

`Map`\<`string`, [`UseFunctionDefinition`](../wiki/Interface.UseFunctionDefinition)\<`unknown`, `any`[], [`UseFunctionConfig`](../wiki/Interface.UseFunctionConfig)\<`unknown`, `any`[], `any`, `any`[]\>\>\>

#### Inherited from

[`ExtractFunctionsMixin`](../wiki/Class.ExtractFunctionsMixin).[`extractFunctions`](../wiki/Class.ExtractFunctionsMixin#extractfunctions)