... why perl is not complaining with an error regarding a statement like
"$m=($1,$2,$3,$4,$5,$6,$7)",
The following set of statements are syntactically correct:
Win8 Strawberry 5.8.9.5 (32) Mon 09/21/2020 19:49:29
C:\@Work\Perl\monks
>perl
use strict;
use warnings;
my $foo = 42;
my $bar = 137;
my $m;
$m = (1, 2, 3, $foo, 5, 6, $bar);
Useless use of a constant in void context at - line 8.
Useless use of a constant in void context at - line 8.
Useless use of private variable in void context at - line 8.
Useless use of a constant in void context at - line 8.
Useless use of a constant in void context at - line 8.
print $m;
__END__
137
(1, 2, 3, $foo, 5, 6, $bar) is a list. Evaluating a list in
scalar context (which is imposed by assignment to the scalar
$m) causes the evaluation of every expression in the list,
with only the result of the evaluation of the last item ( $bar in this
case) being returned. All other results are thrown away, which is
why you see all the "Useless use of..." warnings — not
errors! See the article Context tutorial in the Monastery's
Tutorials section.
Give a man a fish: <%-{-{-{-<
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