Combining two lists, every other item

[Bo_Steadman]

I’m trying to combine two lists by inserting every other item from each of the lists to a new, combined list. (Ex, AAAA, BBBB —> ABABABA). I’m having trouble figuring out how to do this. To complicate matters, it is actually two nested lists (although they are of the same length). Any tips?

[Vikram_Subbaiah]

Something like this?

[Bo_Steadman]

Yea, the only thing is I was hoping to keep the general structure of the list. This is the final solution I ended up with; it may have a little bit of redundancy but it works. Thanks for your help Vikram!

[Vikram_Subbaiah]

Avoid the ‘Flatten’ that I’ve introduced at the end and you maintain the structure.

[truevis]

For Dynamo 2.3:
DSCore.List.Flatten(DSCore.List.Transpose([a,b]));