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Re^2: How does one learn perl programming efficiently - if they do not come from computer science background?

by jmlynesjr (Chaplain)
on Nov 27, 2016 at 01:29 UTC ( #1176629=note: print w/replies, xml ) Need Help??


in reply to Re: How does one learn perl programming efficiently - if they do not come from computer science background?
in thread How does one learn perl programming efficiently - if they do not come from computer science background?

In 30+/-years at $work(EE doing realtime software), I found that if I got the data structures correct, the code usually flowed. If not, things got messy fast. Also, read all the code you can from acknowledged Perl experts(for me in the early days this was reading the Data General RDOS and AOS operating system code).

Domain knowledge is as important as Perl knowledge(You want to control a power system give me a call, develop a website not your man).

James

There's never enough time to do it right, but always enough time to do it over...

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Re^3: How does one learn perl programming efficiently - if they do not come from computer science background? (Data Structures v Code)
by eyepopslikeamosquito (Bishop) on Nov 28, 2016 at 06:54 UTC

    I found that if I got the data structures correct, the code usually flowed. If not, things got messy fast.

    This piece of advice reminds me of the following famous quotes from Fred Brooks, Rob Pike, Eric S. Raymond, and Linus Torvalds:

    The programmer at wit's end for lack of space can often do best by disentangling himself from his code, rearing back, and contemplating his data. Representation is the essence of programming.

    -- from The Mythical Man Month by Fred Brooks

    Data dominates. If you've chosen the right data structures and organized things well, the algorithms will almost always be self-evident. Data structures, not algorithms, are central to programming.

    -- Rob Pike

    Show me your code and conceal your data structures, and I shall continue to be mystified. Show me your data structures, and I won't usually need your code; it'll be obvious.

    -- Eric S. Raymond

    I will, in fact, claim that the difference between a bad programmer and a good one is whether he considers his code or his data structures more important. Bad programmers worry about the code. Good programmers worry about data structures and their relationships.

    -- Linus Torvalds

    See also: Re: Swallowing an elephant in 10 easy steps

      I knew the Raymond quote because itís used as a chapter intro in some Perl book or another. I didnít know the others. Good to see them.

      Great quotes! "The Mythical Man Month" should be required reading.

      James

      There's never enough time to do it right, but always enough time to do it over...

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