good chemistry is complicated,
and a little bit messy -LW
delete on tied variablesby cmac (Monk)
|on Jan 12, 2009 at 03:33 UTC||Need Help??|
cmac has asked for the
wisdom of the Perl Monks concerning the following question:
I'm writing a module that implements tied interfaces. The description of the tied interface describes the DELETE function for both arrays and hashes as applying to only one entry/element.
The description of the delete function says that it can be used on a "hash element, array element, hash slice, or array slice".
Q1: What is a hash slice and how is one written in Perl?
Q2: if a delete function in a Perl program specifies a slice, will the interpreter break it up into individual calls to DELETE?
Q3: if not, what are the operands to DELETE that express a slice, for both an array and a hash?
If there are other pages that cover this subject, please tell me.
Thanks be to Perl Monks,