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Re: How do I keep the first key in a sorted hash?

by pajout (Curate)
on Feb 17, 2014 at 12:32 UTC ( [id://1075171] : note . print w/replies, xml ) Need Help??


in reply to How do I keep the first key in a sorted hash?

As you probably know, hashes have not any order of keys by definition, so I see the simplest way to keep minimal key value in a special scalar variable.

But if you require 'special' hash, which naturally stores just one key/value pair, i.e. if new key/value pair is written into hash, one of them with greater key is deleted, you can implement your own hash using tie (http://perldoc.perl.org/perltie.html).