Re^2: [Perl 6]: Small discoveries VII, Flattening

So (1) is not a tuple, but (1,) is?

(1) is a parenthesized expression, not a tuple. Same with (1+1). This is an unfortunate result of having two different meanings for parens.

Does the number of trailing commas affect anything?

Consecutive commas are also a syntax error in Perl6.

Comment on Re^2: [Perl 6]: Small discoveries VII, Flattening

Replies are listed 'Best First'.
Re^3: [Perl 6]: Small discoveries VII, Flattening by Anonymous Monk on Oct 31, 2017 at 16:51 UTC
Parens don't build lists in Perl6, commas do: `my @a := 1,2; say @a.^name; #List my @b := 1,; say @b.^name; #List` [download] Parens are usually needed because of precedence when embedding the List into another expression. The comma does have another meaning: it's the separator in argument lists.	[reply] [d/l]
Re^4: [Perl 6]: Small discoveries VII, Flattening by Anonymous Monk on Oct 31, 2017 at 17:08 UTC
`> my $x = 1,2; say $x 1 > my $y = (1,2); say $y (1 2)` [download]	[reply] [d/l]