Mark Sargent said:
> Hi All,
>
> am new to Perl. I'm followig this tutorial,
>
> http://www.cs.unc.edu/~jbs/resources/perl/perl-basics/variables.html
>
> and am confused as to why the below shows examples with $ and some with
> % at the beginning of the statement. When it says, "Perl uses the
> "percent" symbol and curly braces with respect to the name of an
> associative array as a whole". Am I to assume that either is fine, when
> defining associative arrays.? Cheers.
I can see why you are confused, that whole tutorial is confusing, not to
mention outdated (I think someone already did).
> $aAA{"A"} = 1; # creates first row of assoc. array
> $aAA{"B"} = 2; # creates second row of assoc. array
<move confusing part>
> %aAA = ("A", 1, "B", 2); # same as first two stmts., above
Maybe better to look at it this way:
%hash = ("Apple" => "Red",
"Banana" => "Yellow",
"Orange" => "Orange");
Now, when you want the value of Banana we look at the scalar (single
entity) of the hash:
print "My bananas are $hash{'Banana'}.\n";
Now to add a new "key"=>"value" pair
$hash{"Blueberries"} = "Blue";
There are many good, Perl5 examples and tutorials out there, this one
comes to mind: http://www.codebits.com/p5be/
and perl.com has a lot of useful stuff, if you don't mind digging about,
as well as CPAN.org, although, maybe a bit more cryptic.
Have fun, I know I am. :)
--
Scott
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