Re^3: Sequential defined-or operators

[ikegami]

Just be careful with precedence. Absent prototypes overriding the default,

my $value =  $hash{$arg}
          // func $arg
          // 'default';

means

my $value =  $hash{$arg}
          // func($arg // 'default');

Putting parens around the low precedence bit solves the problem.

my $value =  $hash{$arg}
          // (func $arg)
          // 'default';

Of course, with functions, you can also do

my $value =  $hash{$arg}
          // func($arg)
          // 'default';

[naikonta]

Yes, I'm aware about this issue. I wrote related matter sometime ago. So I believe it will be perfectly fine to write:

my $value = $hash{$key} // func $arg // 'default';

knowing that func is a unary operator.