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Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it.

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"R.Wieser" <address@not.available> wrote on 11 Aug 2019 in
comp.lang.javascript: 

>> you should NEVER use "this" as a variable
>> in the receiving function:
> 
> Its good that you want to warn about wrong/risky usage, but please do
> add an explanation.  Without it the warning itself wil most likely be
> forgotten rather quickly (I know it does with me).

Panta rhei, kai ouden menei. 

> And yes, I'm interrested.  What makes "this" so special that you should
> not use it as a (local!) argument variable there ?

Because

function korgvol(that) {
   if (this.id=="korgvol2") {CCtype=1}}
};

would maybe be quite legal, 
but difficult to debug where not meant.


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

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Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-08 16:50 -0700
  Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-08 16:55 -0700
  Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2019-08-09 00:16 -0700
    Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Julio Di Egidio <julio@diegidio.name> - 2019-08-09 00:46 -0700
      Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-10 02:03 -0700
        Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-08-10 11:12 +0200
      Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-10 02:08 -0700
        Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Julio Di Egidio <julio@diegidio.name> - 2019-08-10 03:14 -0700
          Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-10 16:32 -0700
            Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-10 16:36 -0700
            Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. dr.j.r.stockton@gmail.com - 2019-08-11 01:39 -0700
              Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-11 02:38 -0700
                NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-08-11 11:58 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-11 12:13 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-08-11 12:31 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-11 20:15 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Arno Welzel <usenet@arnowelzel.de> - 2019-08-11 17:50 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-11 20:20 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. dr.j.r.stockton@gmail.com - 2019-08-11 13:54 -0700
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-12 08:48 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. dr.j.r.stockton@gmail.com - 2019-08-13 14:43 -0700
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-14 08:43 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-08-12 12:13 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Arno Welzel <usenet@arnowelzel.de> - 2019-08-12 11:24 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-08-12 12:14 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-12 12:42 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-12 22:48 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Arno Welzel <usenet@arnowelzel.de> - 2019-08-13 15:06 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Arno Welzel <usenet@arnowelzel.de> - 2019-08-13 15:07 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-13 20:22 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Arno Welzel <usenet@arnowelzel.de> - 2019-08-14 08:47 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-14 10:23 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-08-14 13:45 +0100
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-14 15:10 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-08-15 00:42 +0100
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Julio Di Egidio <julio@diegidio.name> - 2019-08-14 20:51 -0700
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-08-15 14:12 +0100
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-15 09:09 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-08-15 14:11 +0100
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "R.Wieser" <address@not.available> - 2019-08-15 17:34 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Julio Di Egidio <julio@diegidio.name> - 2019-08-19 10:43 -0700
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Arno Welzel <usenet@arnowelzel.de> - 2019-08-14 17:25 +0200
                Re: NEVER use "this" as a variable Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-14 13:10 -0700
            Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Julio Di Egidio <julio@diegidio.name> - 2019-08-12 09:30 -0700
              Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-12 11:55 -0700
                Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-12 11:58 -0700
          Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2019-08-10 18:48 -0700
            Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-08-11 16:25 +0100
              Extracting numbers from strings, using templates (was: Is the input type ID passed as a parameter onChange? If not how can i achieve it.) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2019-08-12 22:10 +0200
                Re: Extracting numbers from strings, using templates (was: Is the input type ID passed as a parameter onChange? If not how can i achieve it.) Jon Ribbens <jon+usenet@unequivocal.eu> - 2019-08-13 00:23 +0000
  Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Arno Welzel <usenet@arnowelzel.de> - 2019-08-09 11:59 +0200
    Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-08-09 13:54 +0200
      Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Arno Welzel <usenet@arnowelzel.de> - 2019-08-09 14:53 +0200
        Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-08-09 15:35 +0200
          Re: Is the input type ID passed as a parameter onChange? If not how can i achieve it. Arno Welzel <usenet@arnowelzel.de> - 2019-08-09 17:16 +0200

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