# Javascript: DocumentViewerController.__init__ Method

> Obsolete. This method will be removed in one of the next versions. Use `controller.initialize()`. Initializes the viewer using the legacy method name.

> **Note:** This is deprecated and should not be used in new work.

- **Product:** DS Server
- **Section:** Reference
- **Kind:** Method
- **Path:** DS Server > Reference > JavaScript API - Document Viewer > Javascript: DocumentViewerController.__init__ Method
- **92 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/init-method/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/init-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/init-method/llms-full.txt

---

### Description

`Obsolete. This method will be removed in one of the next versions.` Use `controller.initialize()`. Initializes the viewer using the legacy method name.

### Syntax

```javascript
<Promise.<void>> DocumentViewerController.__init__()
```

### Return Value

Resolves when the controller is ready for document operations.

---

## Nearby

- **Previous:** [DocumentViewerController Class](https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/llms-full.txt)
- **Next:** [Javascript: DocumentViewerController.addEventListener Method](https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentviewercontroller/addeventlistener-method/llms-full.txt)