Re: REGEXP removing - il- - -b-f and - il- - - - f



Ing. Branislav Gerzo wrote:

JupiterHost.Net [JN], on Thursday, April 28, 2005 at 09:11 (-0500)
contributed this to our collective wisdom:


(really beginners) could think "@a" will empty array, which is not
true.



JN> yes it is true, they are both empty lists:

@a will not empty array, here it is:

I never said it will empty a list, I'm talking about declaring it intially (IE my @a; vs. my @a = ();) when I brought it up.

# perl -mstrict -MData::Dumper -we 'my @x;my @y = ();print Dumper \@x, \@y;'
$VAR1 = [];
$VAR2 = [];
#

See? No differnece in the array, both *create* an empty list, just
 my @a; is slightly more efficient.

my @a = q{foo bar};
@a;
print @a;

against

my @a = q{foo bar};
@a = ( );
print @a;

I hope you see the difference :)

Yes the difference now you're not talking about declaring the array initially which is what this part of this lame thread is all about.

Apples and Oranges my friend :)

PS - I think you mean qw() not q() as you're only assigning one string of "foo bar" to the array...

# perl -mstrict -MData::Dumper -we 'my @x = q{foo bar};print Dumper \@x;'
$VAR1 = [
          'foo bar'
        ];
#

vs.

# perl -mstrict -MData::Dumper -we 'my @x = qw(foo bar);print Dumper \@x;'
$VAR1 = [
          'foo',
          'bar'
        ];
#
.