These are mine:
- Keep things simple.
- Layering/encapsulation and good API design are the keys to good programming.
- Too much abstraction is as bad as too little.
- Minimize code dependencies and specially temporal dependencies: I specially hate the case when you have an object that requires its methods to be called in a particular order and that is manipulated from different layers. Impossible to follow code!
- If you have to write some complicated piece of code, try to hide it behind and easy to use API.
- Code flow must be easy to follow.
- Perl is a powerful and expressive language, don't be afraid to use it to its maximum.
- Avoid code duplication. Don't copy&paste. Boilerplate is OK to a certain degree.
- Make your subs/methods meaningful.
- Try to avoid helper subs/methods with long lists of arguments.
- Don't use an object when a simple hash or array will do.
- Speed matters, scalability matters, memory usage matters, IO matters. Keep that in your mind while programming.
- When breaking some of the previous rules, document it.
- Check the validity of your input (specially when dealing with external input), refuse anything you don't know how to handle: Note that this does not go against the robutness principle, they are orthogonal concepts.
- Write regular expressions as strict as possible.
- Check for errors extensively. Don't ignore them.
- Include internal consistence checks.
- Add lots of debugging code so that you may be able to debug problems reported by others even when you are not able to reproduce them.
- Depending on an external module needs a good justification.
- use strict, use warnings, selectively disable them when required.
- No TDD, it gets on the way of my iterative design/programming thinking process (but if it works for you I am OK with it).
- Otherwise, testing is a very good thing.
- Be consistent in your coding style.
- And use a good editor that takes care of it for you: actually I don't care too much about cosmetics, as far as blocks are indented it is OK for me.
- Finally, paraphrasing the great Salvor Hardin, "Never let your sense of best practices prevent you from doing what is right!"
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||