Phoenix.pm: map + grep problem
Victor Odhner
vodhner at cox.net
Mon May 5 22:46:22 CDT 2003
Shay Harding wrote:
> This could be written as:
> my %h_a2;
> @h_a2{@a2} = undef;
OK, wow. It works nicely, but
what on earth is @h_a2{@a2}???
I see you taking a hash, calling it a
list, subscripting it like a hash,
and using a list as the subscript.
I have no problem with subscripting a
hash with a list, that's old hat.
But what is it called when you put
"@" in front of it instead of "$"?
I guess I should be asking for the
latest and greatest in *Perl* books!
I've been Perling continuously since
1994 but you guys are shaming me.
Vic
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