Function ul_sys::JSObjectGetPropertyForKey

pub unsafe extern "C" fn JSObjectGetPropertyForKey(
    ctx: JSContextRef, 
    object: JSObjectRef, 
    propertyKey: JSValueRef, 
    exception: *mut JSValueRef
) -> JSValueRef

@function @abstract Gets a property from an object using a JSValueRef as the property key. @param ctx The execution context to use. @param object The JSObject whose property you want to get. @param propertyKey A JSValueRef containing the property key to use when looking up the property. @param exception A pointer to a JSValueRef in which to store an exception, if any. Pass NULL if you do not care to store an exception. @result The property's value if object has the property key, otherwise the undefined value. @discussion This function is the same as performing "object[propertyKey]" from JavaScript.