If you're asking about joining if the value in $in is an array reference then something like my $in = ref($scalar) eq 'ARRAY' ? join( ',', @{$scalar} ) : $scalar; but there's a mild hint of XY problem in the air.

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re: Joining if an array by Fletch
in thread Joining if an array by Rodster001

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