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Re: Limit number of function parameters (was:Why does savepng workl with eventlistener but not by call from form?)

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On 27.11.2016 at 02:08, Scott Sauyet wrote:

> Thomas 'PointedEars' Lahn wrote:
>
>> Christoph M. Becker wrote:
>>
>>> Thomas 'PointedEars' Lahn wrote:
>>>
>>>> Scott Sauyet wrote:
>>>>
>>>>> Why five?  That still seems far too many for almost every case. 
>>>>> Three seems to me a much better guideline.  Of course everyone will
>>>>> draw these lines differently for themselves, but I was wondering: do
>>>>> you have a specific reason for that number?
>>>>
>>>> Yes.
>>>
>>> Which is?
>>
>> [Explanation why Thomas prefers at most 5 function parameters.]

Thanks!

> Of course this is not a serious disagreement.  Clearly the main rule is 
> to limit one's parameter list as well as one can.  But I'm always curious 
> as to how people decide upon their particular limits.

FWIW, I quite like Robert C. Martin's rule regarding function
arguments[1] (even though I don't always follow it):

| The ideal number of arguments for a function is zero (niladic). Next
| comes one (monadic), followed closely by two (dyadic). Three arguments
| (triadic) should be avoided where possible. More than three
| (polyadic) requires very special justification and then shouldnt be
| used anyway.

This rule is given in an OOP context, so for functional or procedural
style most likely one should be added (niladic functional or procedural
functions rarely make sense).

[1] Clean Code: A Handbook of Agile Software Craftsmanship

-- 
Christoph M. Becker

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Why does savepng workl with eventlistener but not by call from form? jonas.thornvall@gmail.com - 2016-11-10 14:35 -0800
  Re: Why does savepng workl with eventlistener but not by call from form? jonas.thornvall@gmail.com - 2016-11-10 15:47 -0800
    Re: Why does savepng workl with eventlistener but not by call from form? JJ <jj4public@vfemail.net> - 2016-11-11 21:05 +0700
      Re: Why does savepng workl with eventlistener but not by call from form? jonas.thornvall@gmail.com - 2016-11-11 06:35 -0800
        Re: Why does savepng workl with eventlistener but not by call from form? JJ <jj4public@vfemail.net> - 2016-11-11 22:01 +0700
          Re: Why does savepng workl with eventlistener but not by call from form? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-11-11 16:21 +0100
      Re: Why does savepng workl with eventlistener but not by call from form? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-11-11 16:08 +0100
        Re: Why does savepng workl with eventlistener but not by call from form? Scott Sauyet <scott@sauyet.com> - 2016-11-26 21:09 +0000
          Re: Why does savepng workl with eventlistener but not by call from form? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-11-26 22:47 +0100
            Re: Why does savepng workl with eventlistener but not by call from form? "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-11-27 00:11 +0100
              Re: Why does savepng workl with eventlistener but not by call from form? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2016-11-27 00:57 +0100
                Re: Why does savepng workl with eventlistener but not by call from form? Scott Sauyet <scott@sauyet.com> - 2016-11-27 01:08 +0000
                Re: Limit number of function parameters (was:Why does savepng workl with eventlistener but not by call from form?) "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-11-28 18:17 +0100
                Re: Limit number of function parameters (was:Why does savepng workl with eventlistener but not by call from form?) Scott Sauyet <scott@sauyet.com> - 2016-11-29 02:15 +0000
                Re: Limit number of function parameters "Christoph M. Becker" <cmbecker69@arcor.de> - 2016-12-02 20:24 +0100
                Re: Limit number of function parameters Scott Sauyet <scott@sauyet.com> - 2016-12-03 01:58 +0000

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