Re: variable declaration question

in reply to variable declaration question

To add to what tobyink said, "none" - in context.

my $foo = @some_array_value and my ($foo) = @some_array_value will give two very different results.

print(my $foo = (1, 2, 3), "\n");
print(my ($foo) = (1, 2, 3), "\n");
__END__
3
1
[download]

Update: Alright, either QuickDraw McGraw updated his node, or I skipped over the second and following line when I read it. :-) We stated basically the same thing.

--MidLifeXis

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Re^2: variable declaration question by tobyink (Canon) on Jan 18, 2013 at 21:19 UTC
I updated. It was an afterthought as it didn't seem relevant to the question. (The question included semicolons after the declaration, so the variable is not being initialized.) `perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'`	[reply]
Re^2: variable declaration question by 7stud (Deacon) on Jan 18, 2013 at 22:08 UTC
`print(my $foo = (1, 2, 3), "\n"); print(my ($foo) = (1, 2, 3), "\n"); __END__ 3 1` [download] Ah, I see. The line: `print(my $foo = (1, 2, 3), "\n");` [download] is a convenient way of assigning the last element of an array to a variable.	[reply] [d/l] [select]
Re^3: variable declaration question by keszler (Priest) on Jan 18, 2013 at 22:14 UTC
Try: `print(my $foo = ('a', 'b', 'c'), "\n");` vs: `my @foo = ('a', 'b', 'c'); my $bar = @foo; print $bar, "\n";` I like using letters vs numbers to avoid confusion...	[reply] [d/l] [select]
Re^4: variable declaration question by MidLifeXis (Monsignor) on Jan 21, 2013 at 12:31 UTC
Quite right. ++ --MidLifeXis	[reply]

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