---
title: version
framework: javascriptcore
role: symbol
role_heading: Instance Property
path: javascriptcore/jsclassdefinition/version
---

# version

The version of the class definition structure.

## Declaration

```swift
var version: Int32
```

## See Also

### Managing Class Information

- [parentClass](javascriptcore/jsclassdefinition/parentclass.md)
- [className](javascriptcore/jsclassdefinition/classname.md)
- [attributes](javascriptcore/jsclassdefinition/attributes.md)
- [staticValues](javascriptcore/jsclassdefinition/staticvalues.md)
- [JSStaticValue](javascriptcore/jsstaticvalue.md)
- [staticFunctions](javascriptcore/jsclassdefinition/staticfunctions.md)
- [JSStaticFunction](javascriptcore/jsstaticfunction.md)