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# JSPropertyAttribute

A JavaScript property attribute.

## Topics

### Constants

[`kJSPropertyAttributeNone`](/documentation/JavaScriptCore/kJSPropertyAttributeNone)

An attribute that specifies that a property has no special attributes.

[`kJSPropertyAttributeReadOnly`](/documentation/JavaScriptCore/kJSPropertyAttributeReadOnly)

An attribute that specifies that a property is read-only.

[`kJSPropertyAttributeDontEnum`](/documentation/JavaScriptCore/kJSPropertyAttributeDontEnum)

An attribute that specifies that property enumerators and JavaScript for-in loops don’t enumerate a property.

[`kJSPropertyAttributeDontDelete`](/documentation/JavaScriptCore/kJSPropertyAttributeDontDelete)

An attribute that specifies that the delete operation fails on a property.


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