$var1 = something1 ;

On the left of the assignment is a scalar variable. A scalar variable on the left of an assignment cries out, "Give me a scalar(single) value to store!" Similarly, an array variable on the left of an assignment:

@x = something;

...cries out, "Give me a list to store!"

Now look at this code:

use strict; 
use warnings; 
use 5.012;

my @something = ('a', 'b', 'c');
my $x = @something;
my($y) = @something;

say $x;
say $y;


--output:--
3
a

[download]

When $x cries out for a single value, the array provides its length. On the other hand, ($y) is a list, and it cries out for a list--so that list assignment can be performed:


my @something = ('a', 'b', 'c');
my $d;
my $e;
my $f;

($d, $e, $f) = @something;
say $d;
say $e;
say $f;

--output:--
a
b
c

[download]
($d, $e) = @something;
say $d;
say $e;

--output:--
a
b

[download]
($d) = @something;
say $d;

--output:--
a

[download]
$d = @something;
say $d;

--output:--
3

[download]
my($s, $t, $u) = @something;
say $s;
say $t;
say $u;

--output:--
a
b
c

[download]

In reply to Re: Is it evaluated in scalar or list context? by 7stud
in thread Is it evaluated in scalar or list context? by rnaeye

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