Re: reversed hash doesn't identify keys

[roboticus]

holly71:

If you want to reverse the letter order in a word, you can do that by splitting the word into characters (via split), and then rejoin them in the correct order:

# Take a word
my $word = "Constantinople";

# Split into letters:
my @letters = split '', $word;

# Reverse them
my @srettel = reverse @letters;

# Join back into a single word:
my $drow = join('', @srettel);

Of course, you can combine it all into a single step:

my $drow = join('', reverse split //, "Constantinople");

Update: Or you could (as johngg pointed out) just use reverse, and it'll do the job without all the hoop-jumping-through-stuff.

...roboticus

When your only tool is a hammer, all problems look like your thumb.

[johngg]

reverse works on scalar strings as well!

$ perl -Mstrict -Mwarnings -E '
> my $word = q{Constantinople};
> my $drow = reverse $word;
> say $drow;'
elponitnatsnoC
$

I hope this is of interest.

[roboticus]

johngg:

I've been writing perl for a good while now, and I'm frequently surprised at what I don't know.

...roboticus

When your only tool is a hammer, all problems look like your thumb.

[holly_71]

Thanks very much! I had one too many "reverse"s in there and it was reversing the reversed letters back...