---
title: JSPropertyDescriptorWritableKey
framework: javascriptcore
role: symbol
role_heading: Global Variable
path: javascriptcore/jspropertydescriptorwritablekey
---

# JSPropertyDescriptorWritableKey

The Boolean value for this key determines whether the property permits assignment with the JavaScript = operator.

## Declaration

```swift
let JSPropertyDescriptorWritableKey: String
```

## See Also

### Constants

- [JSPropertyDescriptorEnumerableKey](javascriptcore/jspropertydescriptorenumerablekey.md)
- [JSPropertyDescriptorConfigurableKey](javascriptcore/jspropertydescriptorconfigurablekey.md)
- [JSPropertyDescriptorValueKey](javascriptcore/jspropertydescriptorvaluekey.md)
- [JSPropertyDescriptorGetKey](javascriptcore/jspropertydescriptorgetkey.md)
- [JSPropertyDescriptorSetKey](javascriptcore/jspropertydescriptorsetkey.md)