in reply to Re: Variant of map for special-casing the last item
in thread Variant of map for special-casing the last item

I definitely like the use of a state variable way more than the 5.8 approach. But what I still don't like about this and similar solutions is that they introduce a dependency inside the code block on the value of $#in. What if the input list isn't in an array variable? That's right — you can store it in a temporary. Well, that's what my solution does for you, keeping that mess out of your code.

What is the sound of Windows? Is it not the sound of a wall upon which people have smashed their heads... all the way through?

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Re^3: Variant of map for special-casing the last item
by kcott (Archbishop) on Oct 26, 2010 at 18:34 UTC

    I wrote the 5.12 code first then, realising many people haven't moved past 5.8 yet, wrote the second version - I probably should have posted them in that order. Being able to confine the scope of a variable to a map (or similar) block via state in this way is a nice feature.

    I agree, this solution is not directly applicable to situations like map {...} qw{...}.

    -- Ken