📘 Nested subs in Perl 6

📘 Nested subs in Raku

N. B. Perl 6 has been renamed to Raku. Click to read more.

Nested subs are allowed in Perl 6.

sub cube($x) {
    sub square($x) {
        return $x * $x;

    return $x * square($x);

say cube(3); # 27

The name of the inner sub square is only visible within the body of the outer sub cube.

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