note
Limbic~Region
[jdporter],
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I agree that good judgement needs to be employed when deciding how to use this technique to solve a problem or if to use it at all. Perl does a great job of providing us many tools so that we can choose the right tool for the job. This basic tutorial was intended to introduce the concept and illustrate a basic example of the steps taken to transform a basic function into a Higher Order one.
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With regards to extensibility and named parameters, the advantage is clear when you consider optional parameters using the positional approach. Imagine your function starts out accepting 3 parameters. You then add an optional parameter which you stick on the end. Now if you want to add a 5th parameter you need to change the ordering of the parameters which will break backwards compatability. The issue gets even more complicated if you have more than one optional parameter.
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If this doesn't make my position clear, let me know and I will provide a concrete example using [cpan://Tie::SortHash] and [cpan://Tie::Hash::Sorted].
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Cheers - [Limbic~Region|L~R]
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