Hey everyone!
I’m trying to get the First Item of the List @L2 in a IF Statement in a Code Block.
When i try it without the IF Statement it works perfectly fine.
Can someone please help me?
Hi @massimoprinoth can’t you just split the IF-statement and the First Item? So that you always create the full list or the first item and then take the correct one afterwards.
These imperative code blocks are such a pita. So much more straightforward in python.
Input = IN
if (Input != None):
myResult = (Input[0])[0]
This will give you [1,2]
Input = IN
if (Input != None):
myResult = ((Input[0])[0])[0]
This will give you 1.
Input = IN
if (Input != None):
myResult = ((Input[0])[0])[1]
This will give you 2.
Of course the index could be replaced with variables to pull any item from any level.
And note: use -1 for last item.
The one tricky thing with Python is you need to handle list levels yourself 
Doable of course, but a little bit of a learning curve for the beginner! (Or, you can wrap it in a Custom Node to leverage all that awesomeness and not have to worry about it so much).
For doing this in DesignScript, here is an option, courtesy of @Aparajit_Pratap ! 
And to have it in a single Code Block you can do as follows:
This is mixing both Associative (Which allows List@Level and Lacing) and Imperative blocks, which do not allow for List@Level or replication.
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Thank you so much! Now it works!
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You can create an associative block within an imperative, but you must define a function.
Regards.
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