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Re: How to manipulate integer that sometimes Nan and sometimes have a value?

From Tim Streater <timstreater@greenbee.net>
Newsgroups comp.lang.javascript
Subject Re: How to manipulate integer that sometimes Nan and sometimes have a value?
Date 2015-09-26 22:37 +0100
Message-ID <260920152237182932%timstreater@greenbee.net> (permalink)
References (5 earlier) <XnsA52198BA81D52eejj99@194.109.6.166> <ca0ea1d3-528e-4c06-ad28-2a3b5642cea3@googlegroups.com> <XnsA5219E7CBAC2eejj99@194.109.6.166> <260920151810299395%timstreater@greenbee.net> <XnsA521E8EF9A070eejj99@194.109.6.166>

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In article <XnsA521E8EF9A070eejj99@194.109.6.166>, Evertjan.
<exxjxw.hannivoort@inter.nl.net> wrote:

>Tim Streater <timstreater@greenbee.net> wrote on 26 Sep 2015 in 
>comp.lang.javascript:
>
>> In article <XnsA5219E7CBAC2eejj99@194.109.6.166>, Evertjan.
>> <exxjxw.hannivoort@inter.nl.net> wrote:
>> 
>>>You should be glad that Javascript does not crash or error out,
>>>but gives you the NaN-value, but it stays bad programming.
>> 
>> Personally I'd prefer if it were possible to have javascript give an
>> exception when NaN is generated, for debugging purposes.
>
>if (isNaN(...)) Xception();

Very funny. So every time I'm about to modify a variable containing
what ought be be a non-NaN value, and after every such computation, I
need to check all variables for the NaN value, e.g.

if (isNaN(a)) Xception ();
if (isNaN(b)) Xception ();
c= a + b;
if (isNaN(c)) Xception ();

and so on. That what you're saying ??

-- 
"Please stop telling us what you feel. Please stop telling us what your 
intuition is. Your intuitive feelings are of no interest whatsoever, 
and nor are mine. I don't give a bugger what you feel, or what I feel. 
I want to know what the evidence shows."             -- Richard Dawkins

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Thread

How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-25 07:31 -0700
  Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-25 17:09 +0200
    Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-25 14:43 -0700
      Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-26 08:54 +0200
    Re: How to manipulate integer that sometimes Nan and sometimes have a value? Erwin Moller <erwinmollerusenet@xs4all.nl> - 2015-09-30 15:04 +0200
      Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-30 21:13 +0200
        Re: How to manipulate integer that sometimes Nan and sometimes have a value? Erwin Moller <erwinmollerusenet@xs4all.nl> - 2015-10-01 10:44 +0200
          Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-10-01 13:56 +0200
            Re: How to manipulate integer that sometimes Nan and sometimes have a value? John Harris <niam@jghnorth.org.uk.invalid> - 2015-10-02 11:09 +0100
              Re: How to manipulate integer that sometimes Nan and sometimes have a value? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-02 13:55 +0100
              Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-10-02 16:34 +0200
  Re: How to manipulate integer that sometimes Nan and sometimes have a value? Danny <dann90038@gmail.com> - 2015-09-25 15:11 -0700
    Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-25 17:50 -0700
      Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-26 08:59 +0200
        Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-26 04:25 -0700
          Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-26 15:00 +0200
            Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-26 06:15 -0700
              Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-26 15:34 +0200
                Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-26 08:06 -0700
                Re: How to manipulate integer that sometimes Nan and sometimes have a value? Tim Streater <timstreater@greenbee.net> - 2015-09-26 18:10 +0100
                Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-26 22:53 +0200
                Re: How to manipulate integer that sometimes Nan and sometimes have a value? Tim Streater <timstreater@greenbee.net> - 2015-09-26 22:37 +0100
                Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-27 10:05 +0200
                Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-27 08:42 -0700
                Re: How to manipulate integer that sometimes Nan and sometimes have a value? Tim Streater <timstreater@greenbee.net> - 2015-09-27 17:18 +0100
      Re: How to manipulate integer that sometimes Nan and sometimes have a value? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-26 10:59 +0100
        Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-26 13:15 +0200
          Re: How to manipulate integer that sometimes Nan and sometimes have a value? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-26 14:58 +0100
            Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-26 16:57 +0200
        Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-26 04:28 -0700
          Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-26 15:11 +0200
            Re: How to manipulate integer that sometimes Nan and sometimes have a value? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-09-26 17:19 +0200
              Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-26 22:51 +0200
                Re: How to manipulate integer that sometimes Nan and sometimes have a value? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-09-27 13:50 +0200
          Re: How to manipulate integer that sometimes Nan and sometimes have a value? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-26 20:51 +0100
            Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-28 22:45 -0700
              Re: How to manipulate integer that sometimes Nan and sometimes have a value? "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-09-29 12:36 +0200
              Re: How to manipulate integer that sometimes Nan and sometimes have a value? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-09-29 12:48 +0100
        Re: How to manipulate integer that sometimes Nan and sometimes have a value? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-09-26 14:43 +0200
          Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-26 06:06 -0700
            Re: How to manipulate integer that sometimes Nan and sometimes have a value? John Harris <niam@jghnorth.org.uk.invalid> - 2015-09-27 14:06 +0100
              Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-27 08:50 -0700
              Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-27 08:53 -0700
                Re: How to manipulate integer that sometimes Nan and sometimes have a value? jonas.thornvall@gmail.com - 2015-09-27 09:02 -0700

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