---
title: createDocumentType
framework: WebKit JS
role: symbol
role_heading: Instance Method
platforms: [Safari Desktop 3.0+, Safari Mobile 1.0+]
path: webkitjs/domimplementation/1631860-createdocumenttype
---

# createDocumentType

## Declaration

```data
DocumentType createDocumentType(
    DOMString qualifiedName, 
    DOMString publicId, 
    DOMString systemId
);
```