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Re: Why do I have to use the keyword this in my Employee example

Message-ID <13124040.1SXmGGuGdH@PointedEars.de> (permalink)
From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Organization PointedEars Software (PES)
Date 2014-01-12 21:51 +0100
Subject Re: Why do I have to use the keyword this in my Employee example
Newsgroups comp.lang.javascript
References <larc8g$s3c$1@dont-email.me> <hdq2d9p4tjse2t0isfv010f2m9f0fn7gdl@4ax.com> <52d1792f$0$6555$9b4e6d93@newsspool4.arcor-online.net> <1590346.McO4MUtrrQ@PointedEars.de> <52d2f7f4$0$9522$9b4e6d93@newsspool1.arcor-online.net>

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Christoph Michael Becker wrote:

> Thomas 'PointedEars' Lahn wrote:
>> The methods of Employee instances here are “privileged“ and the variables
>> are “private” (terms coined by Douglas Crockford, IIRC), because only
>> those methods can access those variables/pseudo-properties.  It is the
>> closest equivalent to private/protected properties in class-based OOP.
> 
> AIUI, this technique has a memory overhead, however, as references to
> the functions would have to be stored once per object instance (opposed
> to functions referenced from properties of the prototype object).

Yes, it is a tradeoff.  Someone had suggested privileged *prototype* methods 
instead, but that only helps if all instances should share the variable 
values.

-- 
PointedEars

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

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Why do I have to use the keyword this in my Employee example "Tony Johansson" <johansson.andersson@telia.com> - 2014-01-11 13:08 +0100
  Re: Why do I have to use the keyword this in my Employee example Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-11 16:37 +0100
  Re: Why do I have to use the keyword this in my Employee example John Harris <niam@jghnorth.org.uk.invalid> - 2014-01-11 15:58 +0000
    Re: Why do I have to use the keyword this in my Employee example Christoph Michael Becker <cmbecker69@arcor.de> - 2014-01-11 18:02 +0100
      Re: Why do I have to use the keyword this in my Employee example Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-11 20:07 +0100
        Re: Why do I have to use the keyword this in my Employee example Christoph Michael Becker <cmbecker69@arcor.de> - 2014-01-12 21:15 +0100
          Re: Why do I have to use the keyword this in my Employee example Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-12 21:51 +0100
        Re: Why do I have to use the keyword this in my Employee example John Harris <niam@jghnorth.org.uk.invalid> - 2014-01-14 09:56 +0000
  Re: Why do I have to use the keyword this in my Employee example JJ <duh@nah.meh> - 2014-01-11 23:10 +0700

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