gistfile1.txt

> my %hash; for ^10 { %hash{$_} = 1 };
Nil
>  my %hash; for ^10 { %hash{$_} = 1 }; my $i = 99; for %hash.keys { .say; %hash{$i++} = 1; }
8
Warning: trying to insert into the hash while iterating has undefined functionality
0
Warning: trying to insert into the hash while iterating has undefined functionality
7
Warning: trying to insert into the hash while iterating has undefined functionality
99
Warning: trying to insert into the hash while iterating has undefined functionality
1
Warning: trying to insert into the hash while iterating has undefined functionality
102
Warning: trying to insert into the hash while iterating has undefined functionality
3
Warning: trying to insert into the hash while iterating has undefined functionality
101
Warning: trying to insert into the hash while iterating has undefined functionality
4
Warning: trying to insert into the hash while iterating has undefined functionality
100
Warning: trying to insert into the hash while iterating has undefined functionality
5
Warning: trying to insert into the hash while iterating has undefined functionality
2
Warning: trying to insert into the hash while iterating has undefined functionality
105
Warning: trying to insert into the hash while iterating has undefined functionality
6
Warning: trying to insert into the hash while iterating has undefined functionality
9