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Groups > comp.lang.javascript > #28012

Re: Make own type (object) type in javascript.

From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups comp.lang.javascript
Subject Re: Make own type (object) type in javascript.
Date 2015-06-07 02:40 +0200
Organization PointedEars Software (PES)
Message-ID <2283260.pclIp03G5q@PointedEars.de> (permalink)
References <66362d49-af1e-400b-b026-0e6d9b679f98@googlegroups.com> <87iob0l79e.fsf@bsb.me.uk>

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Ben Bacarisse wrote:

> jonas.thornvall@gmail.com writes:
>> Is it possible to create an object holding holding 1 bit, 2 bit, 3 bit
>> that still can be treated as a numerical value that can be added and
>> subtracted, without bit operations?
> 
> No.

  var o = {
    valueOf: function () {
      return (+!!this.bit3) * 4 + (+!!this.bit2) * 2 + (+!!this.bit1);
    }
  };

  o.bit2 = 23;
  
  /* 42 */
  40 + o

  /* 23 */ 
  25 - o

-- 
PointedEars
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Thread

Make own type (object) type in javascript. jonas.thornvall@gmail.com - 2015-06-06 15:11 -0700
  Re: Make own type (object) type in javascript. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-07 00:57 +0100
    Re: Make own type (object) type in javascript. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-07 01:33 +0100
      Re: Make own type (object) type in javascript. jonas.thornvall@gmail.com - 2015-06-06 17:37 -0700
      Re: Make own type (object) type in javascript. jonas.thornvall@gmail.com - 2015-06-06 17:50 -0700
        Re: Make own type (object) type in javascript. jonas.thornvall@gmail.com - 2015-06-06 18:03 -0700
          Re: Make own type (object) type in javascript. jonas.thornvall@gmail.com - 2015-06-06 18:07 -0700
        Re: Make own type (object) type in javascript. Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-07 10:19 +0100
          Re: Make own type (object) type in javascript. jonas.thornvall@gmail.com - 2015-06-07 04:09 -0700
    Re: Make own type (object) type in javascript. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-07 02:40 +0200

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