Question

In Perl I can concatenate multiple strings with spaces between them as follows:

my $long_string = $one_string . " " . $another_string . " " . $yet_another_string . " " . 
$and_another_string . " " $the_lastr_string

However, typing this is a bit cumbersome.

Is there a built-in that can make this task easier?

e.g. something like:

concatenate_with_spaces($one_string, $another_string, $yet_another_string, ...)

Answer 1

You want join:

my $x = 'X';
my @vars = ( 1, 'then', 'some' );
my $long_string = join ' ', $x, 2, @vars;   # "X 2 1 then some"