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Re: Programming style question

From Jim T. <x@y.z>
Newsgroups comp.lang.javascript
Subject Re: Programming style question
Date 2012-10-23 15:52 -0400
Message-ID <f5td88dckgks06mf02cssn9e0116qum6c8@4ax.com> (permalink)
References (5 earlier) <iuja88hvfo1fs4ai8giqe79d0p7g1b1hq9@4ax.com> <s4sa889g1978stjqgqhg5esjpnk7oqeqgj@4ax.com> <pPCdncn5wICZDhjNnZ2dnUVZ_uednZ2d@earthlink.com> <tucb88te23lg15laq5a0meriminejqeko1@4ax.com> <XnsA0F578505BA8Eeejj99@194.109.133.133>

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On Tue, 23 Oct 2012 11:49:38 +0200, "Evertjan."
<exxjxw.hannivoort@inter.nl.net> wrote:

>Gene Wirchenko wrote on 22 okt 2012 in comp.lang.javascript:
>
>>>This sort of issue is why I like to read a book from start to finish
>>>when learning another language. The "||" construct looks similar in C,
>>>Java, and JavaScript, and has some flavor of an inclusive-or with short
>>>circuit in all three, but is not exactly the same in any pair of them.
>> 
>>      I tend to avoid such tricks because of this. 
>
>Using || and && are NOT yust tricks.
>[unlees you define programming as pure trickery]
>
>compare:
>
>var a = f();
>var b = g();
>var c = a || b;
>
>with
>
>var c = f() || g();
>
>The two scripts are not equal in Javascript!
>
>The positioning of the two funcions is relevant,
>not as expected in pure calculus.
>
>The difference is that if the first function is 
>false [in the case of || ]
>or
>true [in the case of && ]
>the second function is not executed.

I had also assumed this behaviour in JS, and thankfully was correct in
this case. Is there any language with syntax derived rom C that
doesn't behave this way?

>This has two efficient advantages [1,2] 
>and one avoidable disadvantage [3]:
>
>1 Needless processor-time is spared.
>
>2 Errors in the second function, 
>  detected by the first function,
>  ase prevented do collateral damage.
>
>3 Inexperienced programmers planning to use collateral results
>  of the second function, could be bewildered.
>
>> Slightly different syntax and semantics between similar languages: ugh!
>
>Oh grow up, and do not dwell on your professed extensive experience with 
>other languages, but learn to use the lingo at hand.
>
>If languages should be similar, there would be no logical need for using 
>different languages, and we could follow up in Dutch, Greek or Malay.
>
>Different languages are needed, because among other reasons:
>
>1 speaker / programmer and listener / engine should understand each other.
>
>2 monoglotism is less fun, gives less insight in languages, lessens 
>developmental change and does not give you this marvelous incentive to use 
>your biological brain.

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Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-18 08:32 +0100
  Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-18 10:23 +0200
    Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-18 13:42 +0100
      Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-18 17:59 +0200
        Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-18 09:56 -0700
          Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-19 00:49 +0200
            Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-19 11:04 -0700
              Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-20 11:52 +0200
            Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-19 12:06 -0700
              Re: Programming style question Tim Streater <timstreater@greenbee.net> - 2012-10-19 23:12 +0100
                Re: Programming style question "Mel Smith" <med_cutout_syntel@aol.com> - 2012-10-19 21:56 -0600
              Re: Programming style question Bart Van der Donck <bart@nijlen.com> - 2012-10-20 02:21 -0700
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-20 12:03 +0200
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-20 06:31 -0700
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-20 18:30 +0200
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-20 10:32 -0700
                Re: Programming style question Tim Streater <timstreater@greenbee.net> - 2012-10-20 22:34 +0100
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-21 10:12 +0200
                Re: Programming style question Tim Streater <timstreater@greenbee.net> - 2012-10-21 09:34 +0100
                Re: Programming style question Dr J R Stockton <reply1242@merlyn.demon.co.uk.invalid> - 2012-10-21 17:59 +0100
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-22 09:55 +0200
                Re: Programming style question Tim Streater <timstreater@greenbee.net> - 2012-10-22 09:50 +0100
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-22 04:49 -0700
                Re: Programming style question Tim Streater <timstreater@greenbee.net> - 2012-10-22 14:04 +0100
                Re: Programming style question Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2012-10-22 16:07 +0200
                Re: Programming style question Dr J R Stockton <reply1243@merlyn.demon.co.uk.invalid> - 2012-10-23 18:22 +0100
                Re: Programming style question Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2012-10-22 16:01 +0200
                Re: Programming style question Jim T. <x@y.z> - 2012-10-22 12:16 -0400
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-22 11:40 -0700
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-22 14:01 -0700
                Re: Programming style question Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2012-10-23 10:07 +0200
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-23 09:43 -0700
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-23 11:49 +0200
                Re: Programming style question Jim T. <x@y.z> - 2012-10-23 15:52 -0400
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-23 13:07 -0700
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-23 22:45 +0200
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-23 14:14 -0700
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-24 09:35 +0200
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-24 10:17 -0700
                Re: Programming style question Dr J R Stockton <reply1243@merlyn.demon.co.uk.invalid> - 2012-10-25 18:41 +0100
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-25 17:03 -0700
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-25 20:14 -0700
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-25 20:46 -0700
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-26 09:55 +0200
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-26 06:18 -0700
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-26 17:43 +0200
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-26 09:57 -0700
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-26 10:24 -0700
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-26 14:18 -0700
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-27 10:45 +0200
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-27 12:58 +0200
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-27 16:18 +0200
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-27 18:08 +0200
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-27 18:26 +0200
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-27 19:43 +0200
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-27 21:09 +0200
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-27 22:53 +0200
                Re: Programming style question John G Harris <john@nospam.demon.co.uk> - 2012-10-28 11:37 +0000
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-28 12:50 +0100
                Re: Programming style question Martin Leese <please@see.Web.for.e-mail.INVALID> - 2012-10-28 13:43 -0600
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-28 23:58 +0100
                Re: Programming style question John G Harris <john@nospam.demon.co.uk> - 2012-10-29 11:18 +0000
                Re: Programming style question Eric Bednarz <bednarz@fahr-zur-hoelle.org> - 2012-10-27 23:58 +0200
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-28 12:43 +0100
                Re: Programming style question Dr J R Stockton <reply1243@merlyn.demon.co.uk.invalid> - 2012-10-27 19:44 +0100
                Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-24 12:06 -0700
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-24 21:27 +0200
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-10-24 15:12 -0700
                Re: Programming style question Tim Streater <timstreater@greenbee.net> - 2012-10-25 01:29 +0100
                Re: Programming style question Stefan Weiss <krewecherl@gmail.com> - 2012-10-24 21:25 +0200
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-24 21:57 +0200
                Re: Programming style question Stefan Weiss <krewecherl@gmail.com> - 2012-10-25 01:11 +0200
                Re: Programming style question Christoph Becker <cmbecker69@gmx.de> - 2012-10-25 02:00 +0200
                Re: Programming style question Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-24 20:27 -0700
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-25 08:44 +0200
                Re: Programming style question Adam Silver <adambsilver@gmail.com> - 2012-10-25 04:28 -0700
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-25 23:18 +0200
                Re: Programming style question Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-26 08:24 -0700
                Re: Programming style question Stefan Weiss <krewecherl@gmail.com> - 2012-11-07 22:13 +0100
                Re: Programming style question Tim Streater <timstreater@greenbee.net> - 2012-11-07 21:51 +0000
                Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-11-07 23:47 +0100
                Re: Programming style question Stefan Weiss <krewecherl@gmail.com> - 2012-11-08 01:14 +0100
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-11-07 16:51 -0800
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-11-08 16:45 +0100
                Re: Programming style question Scott Sauyet <scott.sauyet@gmail.com> - 2012-11-08 08:02 -0800
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-11-08 17:39 +0100
                Re: Programming style question Gene Wirchenko <genew@ocis.net> - 2012-11-08 11:25 -0800
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-11-08 22:25 +0100
                Re: Programming style question John G Harris <john@nospam.demon.co.uk> - 2012-11-09 10:19 +0000
                Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-11-09 17:41 +0100
                Re: Programming style question Dr J R Stockton <reply1245@merlyn.demon.co.uk.invalid> - 2012-11-10 22:38 +0000
                Re: Programming style question Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-22 12:32 -0700
                Re: Programming style question Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2012-10-23 10:05 +0200
                Re: Programming style question Christoph Becker <cmbecker69@gmx.de> - 2012-10-22 22:11 +0200
                Re: Programming style question Stefan Weiss <krewecherl@gmail.com> - 2012-10-23 02:42 +0200
                Re: Programming style question Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2012-10-23 10:08 +0200
              Re: Programming style question "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2012-10-20 18:34 +0200
  Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-18 11:57 +0200
    Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-18 13:06 +0100
      Re: Programming style question "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2012-10-18 15:32 +0300
        Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-18 13:37 +0100
          Re: Programming style question "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2012-10-18 15:55 +0300
          Re: Programming style question John G Harris <john@nospam.demon.co.uk> - 2012-10-19 10:12 +0100
            Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-19 07:24 -0700
              Re: Programming style question John G Harris <john@nospam.demon.co.uk> - 2012-10-20 17:47 +0100
          Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-24 01:15 +0100
            Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-24 01:31 +0100
            Re: Programming style question "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2012-10-24 07:34 +0300
              Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-24 19:57 +0200
                Re: Programming style question "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2012-10-24 21:02 +0300
        Re: Programming style question Patricia Shanahan <pats@acm.org> - 2012-10-18 20:15 -0700
      Re: Programming style question Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-10-24 01:21 +0100
  Re: Programming style question Scott Sauyet <scott.sauyet@gmail.com> - 2012-10-21 17:57 -0700

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