Re: using Map Was: Re: get set value in array of objects

From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups	comp.lang.javascript
Subject	Re: using Map Was: Re: get set value in array of objects
Date	2018-06-13 23:32 +0200
Organization	PointedEars Software (PES)
Message-ID	<2513390.l9jetEAcx8@PointedEars.de> (permalink)
References	<m7idnSrECaxLhYLGnZ2dnUU7-fvNnZ2d@westnet.com.au> <pfopa6$13s0$1@csiph.com> <AuqdnSaYXed-CL3GnZ2dnUU7-LnNnZ2d@westnet.com.au> <pLGdnbJBttifPL3GnZ2dnUU7-cnNnZ2d@westnet.com.au> <jNidnfkVIMxiWb3GnZ2dnUU7-YednZ2d@westnet.com.au>

Show all headers | View raw

Andrew Poulos wrote:

> On 13/06/2018 2:43 PM, Andrew Poulos wrote:
>> objArray.get(3).name = 'Contrary';
> 
> The only problem being that if the 'name' property doesn't exist it
> throws an error […]

A “TypeError” exception will be thrown then only if the item is sealed (not 
extensible, see Object.seal()) and it is strict mode code.  Otherwise either 
nothing happens (sealed, non-strict), or the property will be created on the 
item (not sealed).

Another possibility is that the item is a Proxy instance with a setter that 
prevents the addition of properties to its target, in which case the 
behavior is either implementation-defined or user-defined.

-- 
PointedEars
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | Please do not cc me./Bitte keine Kopien per E-Mail.

Thread

get set value in array of objects Andrew Poulos <ap_prog@hotmail.com> - 2018-06-12 10:50 +1000
  Re: get set value in array of objects "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-06-12 16:40 +0200
  Re: get set value in array of objects "Christoph M. Becker" <cmbecker69@arcor.de> - 2018-06-12 17:12 +0200
  Re: get set value in array of objects Cezary Tomczyk <cezary.tomczyk@gmail.com> - 2018-06-12 17:36 +0200
    using Map Was: Re: get set value in array of objects Andrew Poulos <ap_prog@hotmail.com> - 2018-06-13 13:56 +1000
      Re: using Map Was: Re: get set value in array of objects Andrew Poulos <ap_prog@hotmail.com> - 2018-06-13 14:43 +1000
        Re: using Map Was: Re: get set value in array of objects Andrew Poulos <ap_prog@hotmail.com> - 2018-06-13 17:17 +1000
          Re: using Map Was: Re: get set value in array of objects Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-13 23:32 +0200
      Re: using Map Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-13 18:47 +0200
        Re: using Map Andrew Poulos <ap_prog@hotmail.com> - 2018-06-14 21:52 +1000
          Re: using Map Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-14 14:31 +0200
            Re: using Map Andrew Poulos <ap_prog@hotmail.com> - 2018-06-14 23:52 +1000
              Re: using Map Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-14 17:13 +0200
                Re: using Map "Mark-" <nospam@mapson.xyz> - 2018-06-14 16:25 +0000
          Re: using Map "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-06-14 16:11 +0200
  Re: get set value in array of objects Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-06-12 16:40 +0100
    Re: get set value in array of objects Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-13 05:18 +0200
      Re: get set value in array of objects Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-13 05:25 +0200
  Re: get set value in array of objects Julio Di Egidio <julio@diegidio.name> - 2018-06-14 07:11 -0700

csiph-web