Just an observation about the return codes:

0 is returned if $a and $b are equal.
1 is returned if $a is greater than $b.
-1 is returned if $a is less than $b.

BrowserUk wrote A brief tutorial on Perl's native sorting facilities. It'll help.

In reply to Re: how sort works by Khen1950fx
in thread how sort works by Complex13

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