Re: Objects comparaison ?

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From	Jake Jarvis <pig_in_shoes@yahoo.com>
Newsgroups	comp.lang.javascript
Subject	Re: Objects comparaison ?
Date	Tue, 18 Oct 2011 17:43:52 +0200
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On 18.10.2011 17:06, wrote Jukka Lahtinen:
> dhtml <dhtmlkitchen@gmail.com> writes:
>
>> Java `Object.equals` does nothing more than use Java's == which is

         ^^^^^^^^^^^^^
         ^^^^^^

>> analagous to JavaScript's ===.
>
> WRONG!
> Java's == operator tests whether the expressions on each side point to
> the same object, while the equals method tests whether the contents of
> two objects are same.
> Thus in java, "foo == bar" may return false even when "foo.equals(bar)"
> returns true.
>

From the API docs

| The equals method for class Object implements the most discriminating

                              ^^^^^^

| possible equivalence relation on objects; that is, for any non-null
| reference values x and y, this method returns true if and only if x
| and y refer to the same object (x == y has the value true).

-- 
Jake Jarvis

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Thread

Objects comparaison ? unbewusst.sein@fai.invalid (Une Bévue) - 2011-10-13 20:20 +0200
  Re: Objects comparaison ? "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2011-10-13 21:47 +0300
    Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-13 21:21 +0200
      Re: Objects comparaison ? "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2011-10-13 22:40 +0300
        Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-13 21:46 +0200
          Re: Objects comparaison ? dhtml <dhtmlkitchen@gmail.com> - 2011-10-13 13:11 -0700
            Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-14 01:26 +0200
              Re: Objects comparaison ? dhtml <dhtmlkitchen@gmail.com> - 2011-10-14 12:41 -0700
                Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-15 21:37 +0200
                Re: Objects comparaison ? Antony Scriven <adscriven@gmail.com> - 2011-10-15 15:51 -0700
                Re: Objects comparaison ? dhtml <dhtmlkitchen@gmail.com> - 2011-10-15 21:28 -0700
                Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-16 11:41 +0200
                Re: Objects comparaison ? dhtml <dhtmlkitchen@gmail.com> - 2011-10-16 09:05 -0700
                Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-16 21:59 +0200
                Re: Objects comparaison ? John G Harris <john@nospam.demon.co.uk> - 2011-10-17 10:53 +0100
                Re: Objects comparaison ? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2011-10-17 07:02 -0700
                Re: Objects comparaison ? Andreas Bergmaier <andber93@web.de> - 2011-10-17 16:27 +0200
                Re: Objects comparaison ? dhtml <dhtmlkitchen@gmail.com> - 2011-10-17 21:28 -0700
                Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-18 11:12 +0200
                Re: Objects comparaison ? John G Harris <john@nospam.demon.co.uk> - 2011-10-18 15:23 +0100
                Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-18 19:48 +0200
                Re: Objects comparaison ? John G Harris <john@nospam.demon.co.uk> - 2011-10-19 17:08 +0100
                Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-20 23:58 +0200
                Re: Objects comparaison ? Antony Scriven <adscriven@gmail.com> - 2011-10-20 15:46 -0700
                Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-18 10:55 +0200
                Re: Objects comparaison ? John G Harris <john@nospam.demon.co.uk> - 2011-10-18 15:59 +0100
                Re: Objects comparaison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-18 19:33 +0200
                Re: Objects comparaison ? Scott Sauyet <scott.sauyet@gmail.com> - 2011-10-18 14:05 -0700
                Re: Objects comparaison ? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2011-10-18 16:51 -0700
                Re: Objects comparaison ? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2011-10-18 17:21 -0700
                Re: Objects comparaison ? Scott Sauyet <scott.sauyet@gmail.com> - 2011-10-19 04:40 -0700
                Re: Objects comparaison ? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2011-10-19 16:41 -0700
                Re: Objects comparaison ? Antony Scriven <adscriven@gmail.com> - 2011-10-19 17:14 -0700
                Re: Objects comparaison ? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2011-10-19 18:33 -0700
                Re: Objects comparaison ? Scott Sauyet <scott.sauyet@gmail.com> - 2011-10-23 11:43 -0700
                Re: Objects comparaison ? Antony Scriven <adscriven@gmail.com> - 2011-10-19 15:32 -0700
                Re: Objects comparaison ? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2011-10-19 16:54 -0700
                Re: Objects comparaison ? Antony Scriven <adscriven@gmail.com> - 2011-10-19 17:32 -0700
                Re: Objects comparaison ? "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2011-10-19 18:39 -0700
                Re: Objects comparaison ? John G Harris <john@nospam.demon.co.uk> - 2011-10-19 16:32 +0100
                Re: Objects comparaison ? Scott Sauyet <scott.sauyet@gmail.com> - 2011-10-19 14:18 -0700
                Re: Objects comparaison ? Antony Scriven <adscriven@gmail.com> - 2011-10-19 15:46 -0700
                Objects comparison ? John G Harris <john@nospam.demon.co.uk> - 2011-10-20 16:28 +0100
                Re: Objects comparison ? Antony Scriven <adscriven@gmail.com> - 2011-10-20 12:23 -0700
                Re: Objects comparison ? Antony Scriven <adscriven@gmail.com> - 2011-10-20 15:04 -0700
                Re: Objects comparison ? John G Harris <john@nospam.demon.co.uk> - 2011-10-21 15:38 +0100
                Re: Objects comparison ? Andreas Bergmaier <andber93@web.de> - 2011-10-22 19:40 +0200
                Re: Objects comparison ? John G Harris <john@nospam.demon.co.uk> - 2011-10-23 11:49 +0100
                Re: Objects comparison ? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-10-24 19:00 +0200
                Re: Objects comparison ? Scott Sauyet <scott.sauyet@gmail.com> - 2011-10-21 05:29 -0700
                Re: Objects comparison ? John G Harris <john@nospam.demon.co.uk> - 2011-10-21 16:30 +0100
            Re: Objects comparaison ? Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2011-10-18 18:06 +0300
              Re: Objects comparaison ? Jake Jarvis <pig_in_shoes@yahoo.com> - 2011-10-18 17:43 +0200
      Re: Objects comparaison ? unbewusst.sein@fai.invalid (Une Bévue) - 2011-10-14 06:11 +0200
        Re: Objects comparaison ? "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2011-10-14 08:07 +0300
          Re: Objects comparaison ? unbewusst.sein@fai.invalid (Une Bévue) - 2011-10-14 07:31 +0200
            Re: Objects comparaison ? "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2011-10-14 08:59 +0300
              Re: Objects comparaison ? unbewusst.sein@fai.invalid (Une Bévue) - 2011-10-14 08:36 +0200
        Re: Objects comparaison ? unbewusst.sein@fai.invalid (Une Bévue) - 2011-10-14 08:35 +0200

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