tutorial/hash/hash.p6
#!/usr/bin/env perl6
use v6;
# creating hashes
my %h1 = first => '1st', second => '2nd';
if %h1{'first'}.defined {
say "the value of 'first' is defined";
}
if %h1<second>.defined {
say "the value of 'second' is defined";
}
if %h1.exists('first') {
say "the key 'first' exists in h2";
}
say %h1.exists('third') ?? "third exists" !! "third does not exist";
say %h1<first>;
say %h1<second>;
# TODO hash with fixed keys not implemented yet
#my %h2{'a', 'b'} = ('A', 'B');
#say %h2.delete('a');
#say %h2.delete('a');
Output
tutorial/hash/hash.p6.out
the value of 'first' is defined the value of 'second' is defined the key 'first' exists in h2 third does not exist 1st 2nd
Published on 2012-01-01