The statement that there are no references in Perl 6 is misleading at best.
In fact, nearly everything is a referece.
# $x is a reference
my $x = SomeClass.new();
# this also doesn't need an explicit reference
my @a = 1, 2, 3;
my $arr = @a;
# now you can use $arr instead of @a, though $arr won't flatten into l
+ists by default
$arr.push('foo')
say ~$arr; # 1 2 3 foo
So references aren't gone; just their visibility has decreased drastically, as well as the need for explicit derferencing.
Also function arguments are passed by read-only reference by default.
Perl 6 - links to (nearly) everything that is Perl 6.
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