The callback invoked when setting a property’s value.
SDKs
- iOS 7.0+
- macOS 10.5+
- Mac Catalyst 13.0+
- tvOS 9.0+
Framework
- Java
Script Core
Declaration
typealias JSObjectSetPropertyCallback = (JSContextParameters
ctxThe execution context to use.
objectThe JSObject on which to set the property's value.
propertyNameA JSString containing the name of the property to set.
valueA JSValue to use as the property's value.
exceptionA pointer to a JSValueRef in which to return an exception, if any.
Return Value
true if the property was set, otherwise false.
Discussion
If you named your function Set, you would declare it like this:
bool SetProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef value, JSValueRef* exception);
If this function returns false, the set request forwards to object's statically declared properties, then its parent class chain (which includes the default object class).