---
title: setBaseAndExtent
framework: webkitjs
role: symbol
role_heading: Instance Method
path: webkitjs/domselection/1630745-setbaseandextent
---

# setBaseAndExtent

## Declaration

```data
void setBaseAndExtent(
    Node? baseNode, 
    unsigned long baseOffset, 
    Node? extentNode, 
    unsigned long extentOffset
);
```