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Re: Understanding someone's code

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tony@mountifield.org (Tony Mountifield) wrote on 30 Mar 2017 in 
comp.lang.javascript:

>> > if (b.getPageInView) {
>> >    a = b.getPageInView();
>> >    if (a) {
>> >      F = a;
>> >      document.getElementById("pageNumber").value = a;
>> >    }
>> >}
>> 
>> No.
> 
> Why not? It looks equivalent to me, in that specific case.

Incorrect, did you test it?

After:

F = 7;
a = 0;
if (a) {
     F = a;
     document.getElementById("pageNumber").value = a;
}

F will be 7, 

while after:

F = 7;
a = 0;
F = (F = a) && (document.getElementById("pageNumber").value = a);

F will be 0;

> If you believe
> it to be a wrong interpretation of the original code, why not provide
> a better one

This is not a church, 
faith does not come into coding,
faith being nonsense anyway.

> , instead of the unrelated and simple example below?

I try to teach to the best of my knowledge,
not take over the coding,
this NG not being a helpdesk.

-- 
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

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Understanding someone's code Andrew Poulos <ap_prog@hotmail.com> - 2017-03-30 15:26 +1100
  Re: Understanding someone's code Andrew Poulos <ap_prog@hotmail.com> - 2017-03-30 18:48 +1100
    Re: Understanding someone's code "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-03-30 12:07 +0200
      Re: Understanding someone's code tony@mountifield.org (Tony Mountifield) - 2017-03-30 11:43 +0000
        Re: Understanding someone's code "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-03-30 14:00 +0200
          Re: Understanding someone's code tony@mountifield.org (Tony Mountifield) - 2017-03-30 13:44 +0000
            Re: Understanding someone's code "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-03-30 19:07 +0200
    Re: Understanding someone's code JJ <jj4public@vfemail.net> - 2017-03-30 18:58 +0700
      Re: Understanding someone's code Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-03-30 18:13 +0200
    Re: Understanding someone's code Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-03-30 18:13 +0200
      Re: Understanding someone's code John G Harris <niam@jghnorth.org.uk.invalid> - 2017-03-31 10:30 +0100
        Re: Understanding someone's code Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-04-02 14:41 +0200
          Re: Understanding someone's code John G Harris <niam@jghnorth.org.uk.invalid> - 2017-04-02 19:05 +0100
            Re: Understanding someone's code Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-04-10 05:00 +0200
              Re: Understanding someone's code John G Harris <niam@jghnorth.org.uk.invalid> - 2017-04-10 10:03 +0100

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