: my $num = 100; : my $str = 'abc'; : my $array = [1,2,4,8,16]; : my $hash = {a => 1, b => 2, c => 3, d => 4}; : $num ~ ' is a number' if $num.looks_like_number(); : $str ~ ' is a string' if !$str.looks_like_number(); : $str ~ ' length is ' ~ $str.length(); : 'sum of ' ~ $array.join(',') ~ ' is ' ~ $array.sum(); : my $reduced = $hash.delete_keys('b', 'd'); After keys b and d have been deleted, the hash is: : for $reduced.kv() -> $pair { <: $pair.key :> = <: $pair.value :> : };
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