---
title: testEnforceRangeUnsignedLong
framework: webkitjs
role: symbol
role_heading: Instance Property
path: webkitjs/typeconversions/1630558-testenforcerangeunsignedlong
---

# testEnforceRangeUnsignedLong

## Declaration

```data
attribute unsigned long testEnforceRangeUnsignedLong;
```