On 2019-12-07 18:30, Mark Senn wrote:
Corrected section
my %h = a => "x", b=>"r", c=>"z";
if %h<d> { say "exists"; } else { say "DOES NOT exist"; }
DOES NOT exist
if %h<b> { say "exists"; } else { say "DOES NOT exist"; }
exists
Hi.
The following code prints DOES NOT exist twice.
my %h = a => "x", b=>0, c=>"z";
if %h<d> { say "exists"; } else { say "DOES NOT exist"; }
if %h<b> { say "exists"; } else { say "DOES NOT exist"; }
I changed the b=>"r" to b=>0. I think it is evaluating
the b element as a boolean---I think the exists adverb
needs to be used to check for existence.
-m
Hi Mark,
Oh bugger!
This is what I get:
$ perl6
To exit type 'exit' or '^D'
> my %h = a => "x", b=>"r", c=>"z";
{a => x, b => r, c => z}
> if %h<d> { say "exists"; } else { say "DOES NOT exist"; }
DOES NOT exist
> if %h<b> { say "exists"; } else { say "DOES NOT exist"; }
exists
Would someone else please run my code and see if
they can reproduce Mark's error?
Many thanks,
-T
