> Why exactly would dereferencing be used here? Why not direct access to the variable?

without digging too deep into this code ...

map can only iterate over scalars.

I.e. like a list of $array_refs, if you want to address different arrays ...

> Why not direct access to the variable?

if you mean something like @array as the "direct" variable, you CAN'T do something like

map { $_[0]++ } (@a,@b,@c)

to increment the first element of each array.

The real problem with that code is the laziness of the author to use a clear style.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!

In reply to Re^3: Code clarification - use of map and $$_ by LanX
in thread Code clarification - use of map and $$_ by Anonymous Monk

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