It prints nothing because you have a precedence problem

not ($_+1) % 3

Will always evaluate to false as it is the same as

(not ($_+1)) % 3

Adding some parens in the right places

not (($_+1) % 3)

Should give the correct result

In reply to Re: Re: Re: Re: Elegantly Selecting Every 3rd Element in an Array. by gbarr
in thread Elegantly Selecting Every 3rd Element in an Array. by jerrygarciuh

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