List.combine node outputting null lists

Hey,

I’m new to Dynamo and I am curious as to why my list.combine is outputting null instead of values. My original goal is to use List.Cartesianproduct by I found that this is also an issue with List.Combine and I am assuming for the same reason. I’ve tried a couple things but I feel like the answer is much simpler than I believe.

Any help would be appreciated.

I think you want List.AddItemToFront with levels set to @L1, and skip the List.Combine.

The first input to the node should be a function (the node Object.Type can tell you what you have from another nodes output). I believe you are providing a null object at the moment as DesignScript cannot author functions like this.

List.Combine will not see the designscript as a function, use a node to drive the combination. You will have to add an input port on the function node to match the combine node