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He's going to fight to the last against doing something 'childish', even though I assure him that when I'm coding professionally I'm doing little test scripts more than I'm working on the 'real' program.

Right on, jepri! I just had a quick scan on 4 different accounts here at work, that reveals some 400+ little test scripts. On each machine I have a ~/perl directory where I try out snippets to check how things work. For instance, the other day I had hesitations about how splice works, because I use it so rarely. So I whipped up "muncharr" which looks like:

#! /usr/bin/perl -w use strict; my @arr = ('a'..'z'); my $nr = shift || 6; local $, = ' '; while( scalar @arr ) { my @block = splice( @arr, 0, $nr ); print "@block\n"; }

With that, I was able to see straight away that my understanding of how splice worked was in line with reality. It took me about 2 minutes for take the time out to perldoc -f splice and test this out. I was then able to fold the principle back into my main code and safe in the knowledge that at least that part of the code was likely to be bug-free :)

And I suppose it is useful to stress that even little snippets are deserving of strict and -w. Also note how I wrote the script to use default value(s) that can be overriden from the command line.


print@_{sort keys %_},$/if%_=split//,'= & *a?b:e\f/h^h!j+n,o@o;r$s-t%t#u'

In reply to Re: Adult learning problem by grinder
in thread Adult learning problem by jepri

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