---
title: createTreeWalker
framework: WebKit JS
role: symbol
role_heading: Instance Method
platforms: [Safari Desktop 10.0+, Safari Mobile 10.0+]
path: webkitjs/document/1633191-createtreewalker
---

# createTreeWalker

## Declaration

```data
TreeWalker createTreeWalker(
    Node root, 
    optional unsigned long whatToShow, 
    optional NodeFilter? filter
);
```