# Javascript: DefaultToolbarItemDescriptor.defaultItemType Property

> Built-in item identifier accepted by the viewer.

- **Product:** DS Server
- **Section:** Reference
- **Kind:** Property
- **Path:** DS Server > Reference > JavaScript API - Document Viewer > Javascript: DefaultToolbarItemDescriptor.defaultItemType Property
- **44 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/defaulttoolbaritemdescriptor/defaultitemtype-property/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/defaulttoolbaritemdescriptor/defaultitemtype-property/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/defaulttoolbaritemdescriptor/defaultitemtype-property/llms-full.txt

---

### Description

Built-in item identifier accepted by the viewer.

### Syntax

```javascript
<DefaultItemTypes> DefaultToolbarItemDescriptor.defaultItemType
```

---

## Nearby

- **Previous:** [DefaultToolbarItemDescriptor Class](https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/defaulttoolbaritemdescriptor/llms-full.txt)
- **Next:** [DocumentData Object](https://docs.textcontrol.com/ds-server/reference/javascript-document-viewer/documentdata/llms-full.txt)