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Detect empty element in cluster

Hi,

 

I want to know if there is a way to detect empty elements on a cluster, with no dependencies on the type/format of the cluster.

I have tried to construct a function with a cluster reference input, use property node "Controls[]" and then check the value in every element in a for loop. But in this approach, if i alter the cluster format, i have to change the reference input.

Is it possible to do detect empty elements in different way that could apply to all clusters without changes?


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