Re^3: map problem

[talexb]

in reply to Re^2: map problem
in thread map problem

I like a modification of your middle suggestion best:

my %y = map { "prefix_".$_ => 1 } qw(a b c);

There's no need to put $_ inside quotes, only to have Perl do variable interpolation on that string. :)

[Marshall]

That will work just fine and dandy as near as I can tell.
GREAT! - understandable! (in terms of what it does).
For something like this I would probably add a comment in the code for others as tip to why this "understandable thing" was needed. Not just for the future readers, but you may even forget "why" after a few years. That stuff has happened to me before! If the technique is so tricky that you had to think a lot about it, put in a comment.

But, yes,  "prefix_".$_ => 1 is "easy on the eyes" (and the brain)