> but instead do:
> my $a, $x, $y, $z = foo()
The precedence of = is higher than , !
(my $a), ($x), ($y), ($z = foo())
That's effectively the same like 4 separate statements.
my $a ; $x ; $y ; $z = foo() ;
1. => scalar assignment to $z and scalar context for foo() call
2. => my declaration only for $a
3. => $x and $y are undeclared and in void context
4. => strict will fail
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