[@rxap/ngx-changelog](../wiki/globals) / ChangelogComponent

# Class: ChangelogComponent

Defined in: [changelog/src/lib/changelog/changelog.component.ts:31](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L31)

## Implements

- `OnInit`

## Constructors

### new ChangelogComponent()

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

#### Returns

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

## Properties

### activeIndex

> `readonly` **activeIndex**: `WritableSignal`\<`number`\>

Defined in: [changelog/src/lib/changelog/changelog.component.ts:35](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L35)

***

### application

> `readonly` **application**: `string`

Defined in: [changelog/src/lib/changelog/changelog.component.ts:70](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L70)

***

### availableVersions

> `readonly` **availableVersions**: `WritableSignal`\<`string`[]\>

Defined in: [changelog/src/lib/changelog/changelog.component.ts:33](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L33)

***

### displayedButtons

> `readonly` **displayedButtons**: `Signal`\<`object`[]\>

Defined in: [changelog/src/lib/changelog/changelog.component.ts:45](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L45)

***

### error

> `readonly` **error**: `WritableSignal`\<`null` \| `string`\>

Defined in: [changelog/src/lib/changelog/changelog.component.ts:34](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L34)

***

### getChangelogMethod

> `readonly` **getChangelogMethod**: [`ChangelogControllerGetVersionRemoteMethod`](../wiki/Class.ChangelogControllerGetVersionRemoteMethod)

Defined in: [changelog/src/lib/changelog/changelog.component.ts:72](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L72)

***

### getChangelogMethodParameters

> `readonly` **getChangelogMethodParameters**: `Signal`\<\{ `parameters`: \{ `application`: `string`; `version`: `string`; \}; \}\>

Defined in: [changelog/src/lib/changelog/changelog.component.ts:74](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L74)

***

### selectedVersion

> `readonly` **selectedVersion**: `Signal`\<`string`\>

Defined in: [changelog/src/lib/changelog/changelog.component.ts:36](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L36)

## Methods

### ngOnInit()

> **ngOnInit**(): `void`

Defined in: [changelog/src/lib/changelog/changelog.component.ts:83](https://gitlab.com/rxap/packages/-/blob/15b5fab8912b1042ea325e7f4d98844416018df1/packages/angular/changelog/src/lib/changelog/changelog.component.ts#L83)

A callback method that is invoked immediately after the
default change detector has checked the directive's
data-bound properties for the first time,
and before any of the view or content children have been checked.
It is invoked only once when the directive is instantiated.

#### Returns

`void`

#### Implementation of

`OnInit.ngOnInit`