Appending multiple values to an array in Perl6

Question

I am looking for a way to append multiple values to an @array. The documentation points out that there is a method called .append that would do that job. but when I am doing something like this:

my @array = <a b>;
my @values = 1,2,3;
@array.append: @values, 17;

I am getting a nested result:

[a b [1 2 3] 17]

Answer 1

You need to slip the array as Perl 6 doesn't auto-slip ("flatten"), except if it's the only iterable in an a argument.

So:

@array.append: @values;      # will slip the array as it's the only parameter
@array.append: @values,17;   # does not slip @values
@array.append: |@values, 17; # will slip the @values into @array

Instead of |@values, you could also slip(@values) or @values.Slip.