Attempt to document method default in class Array

gistfile1.txt

=head2 method default

Defined as:

    method default

Usage:

    Array.default

Returns the default value of the invocant, i.e. the value which is returned
when trying to access an element in the C<Array> which has not been 
previously initialized or when accessing an element which has explicitly
been set to C<Nil>. Unless the C<Array> is declared as having a default
value by using the L<is default|/routine/is default> trait the method returns
the type object C<(Any)>.

    my @a1 = 1, "two", 2.718;
    say @a1.default;                                       # (Any)
    say @a1[4];                                            # (Any)

    my @a2 is default(17) = 1, "two", 3;
    say @a2.default;                                       # 17
    say @a2[4];                                            # 17
    @a2[1] = Nil;                                          # (resets element to its default)
    say @a2[1];                                            # 17