Chas. Owens wrote:
You initialize a hash with a list. So if you want an empty hash then
you need to assign an empty list to it:
%hash = ();
Couldn't you go
undef( %hash );
to get an undefined ref - leaving the old contents for the system to
free up?
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On Jan 29, 2008 1:26 AM, Andrew Limareff [EMAIL PROTECTED] wrote:
Chas. Owens wrote:
You initialize a hash with a list. So if you want an empty hash then
you need to assign an empty list to it:
%hash = ();
Couldn't you go
undef( %hash );
to get an undefined ref - leaving the old
Is there a way to empty/clear a hash in mass?
For instance:
%hash = {} ;
Might the above create an reference?
Thank you,
Kevin
Kevin Viel, PhD
Post-doctoral fellow
Department of Genetics
Southwest Foundation for Biomedical Research
San Antonio, TX 78227
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On Jan 18, 2008 11:57 AM, Kevin Viel [EMAIL PROTECTED] wrote:
Is there a way to empty/clear a hash in mass?
For instance:
%hash = {} ;
Might the above create an reference?
snip
The above does create a reference. In fact, the hash will now contain
something like
%hash = (
HASH
See http://perldoc.perl.org/functions/delete.html
Generally speaking (ie yes, there are exceptions), there is no reason
to ever want to delete a variable.
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On Jan 18, 2008, at 8:57 AM, Kevin Viel wrote:
Is there a way to empty/clear a hash in mass?
For instance:
%hash = {} ;
Might the above create an reference?
Thank you,
Kevin
Kevin Viel, PhD
Post-doctoral fellow
Department of Genetics
Southwest Foundation for Biomedical Research
San Antonio
