Re: Insert Function into Error Object

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Message-ID	<2810704.ZYsuzNNPX5@PointedEars.de> (permalink)
From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To	Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
Organization	PointedEars Software (PES)
Date	Sun, 29 Dec 2013 20:31:02 +0100
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Subject	Re: Insert Function into Error Object
Newsgroups	comp.lang.javascript
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Cezary Tomczyk wrote:

> 2013-12-28 17:20, MC wrote:
> [...]
>> So no one has any ideas on how to attach a function to be called when
>> the Error object is called?
> 
> Take a look at:
> http://stackoverflow.com/questions/783818/how-do-i-create-a-custom-error-in-javascript

The accepted answer is wrong as explained many times, not least in

<http://stackoverflow.com/a/12593269/855543>

The correct approach is

  NotImplementedError.prototype = (function () {
    function Foo () {}
    Foo.prototype = Error.prototype;
    return new Foo;
  }());

or simply

  NotImplementedError.prototype = Object.create(Error.prototype, {
    …
  });

See also JSX:object.js.

-- 
PointedEars

Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.

Thread

Insert Function into Error Object MC <news@aisus.com> - 2013-12-25 20:48 -0600
  Re: Insert Function into Error Object Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2013-12-26 18:46 -0200
    Re: Insert Function into Error Object MC <news@aisus.com> - 2013-12-26 18:47 -0600
      Re: Insert Function into Error Object "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-12-27 09:54 +0100
        Re: Insert Function into Error Object MC <news@aisus.com> - 2013-12-27 10:16 -0600
        Re: Insert Function into Error Object MC <news@aisus.com> - 2013-12-27 10:26 -0600
      Re: Insert Function into Error Object JJ <duh@nah.meh> - 2013-12-28 00:53 +0700
  Re: Insert Function into Error Object "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2013-12-26 20:17 -0800
    Re: Insert Function into Error Object Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2013-12-27 11:15 -0200
      Re: Insert Function into Error Object MC <news@aisus.com> - 2013-12-27 10:09 -0600
    Re: Insert Function into Error Object Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-12-27 17:24 +0100
      Re: Insert Function into Error Object MC <news@aisus.com> - 2013-12-27 10:34 -0600
        Re: Insert Function into Error Object "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-12-27 17:57 +0100
  Re: Insert Function into Error Object MC <news@aisus.com> - 2013-12-28 10:20 -0600
    Re: Insert Function into Error Object JJ <duh@nah.meh> - 2013-12-29 07:12 +0700
    Re: Insert Function into Error Object Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2013-12-29 20:13 +0100
      Re: Insert Function into Error Object Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-12-29 20:31 +0100
  Re: Insert Function into Error Object MC <news@aisus.com> - 2014-01-12 11:26 -0600
    Re: Insert Function into Error Object "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2014-01-13 02:59 -0800
      Re: Insert Function into Error Object Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-13 12:59 +0100
        Re: Insert Function into Error Object "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2014-01-13 04:37 -0800

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