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Re: Using Block instead of Module?

I haven't sorted out exactly what is going in these two examples. Block
and Module are different: Module creates a new symbol, while Block uses
the given symbol. Nevertheless, there is an even shorter version of your
program that works:

outputTest[lst_List, id_Integer] := Put[lst, ToString[id] <> ".txt"]

outputTest[{1, 2, 3}, 3]

!! 3.txt

{1, 2, 3}


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