Path: csiph.com!3.eu.feeder.erje.net!feeder.erje.net!news.mb-net.net!open-news-network.org!.POSTED.96.235.197.178.dynamic.wless.lssmb00p-cgnat.res.cust.swisscom.ch!not-for-mail
From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: Painted into a corner
Date: Mon, 07 Dec 2020 04:44:44 +0100
Organization: PointedEars Software (PES)
Lines: 43
Message-ID: <5415173.DvuYhMxLoT@PointedEars.de>
References: <CrOdnaj9_ITsBFDCnZ2dnUU7-VfNnZ2d@westnet.com.au> <11650524.O9o76ZdvQC@PointedEars.de>
Reply-To: Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
Mime-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 7Bit
Injection-Info: gwaiyur.mb-net.net; posting-host="96.235.197.178.dynamic.wless.lssmb00p-cgnat.res.cust.swisscom.ch:178.197.235.96"; logging-data="29762"; mail-complaints-to="abuse@open-news-network.org"
User-Agent: KNode/4.14.10
Cancel-Lock: sha1:0GBeVV0dAJ7NfhKHdOATgXxD28w=
X-Face: %i>XG-yXR'\"2P/C_aO%~;2o~?g0pPKmbOw^=NT`tprDEf++D.m7"}HW6.#=U:?2GGctkL,f89@H46O$ASoW&?s}.k+&.<b';Md8`dH6iqhT)6C^.Px|[=M@7=Ik[_w<%n1Up"LPQNu2m8|L!/3iby{-]A+#YE}Kl{Cw$\U!kD%K}\2jz"QQP6Uqr],./"?;=4v
Face: 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
X-User-ID: U2FsdGVkX19oEdYyD8Sjm19YWSViIk9Vcu4l7mOcLbfkM8RxPAfFOw==
Xref: csiph.com comp.lang.javascript:39237

Thomas 'PointedEars' Lahn wrote:

> I am pretty sure that bullet-proof form serialization code has already
> been written several times.

Consider this quickhack:

  var form = document.forms[0];
  var elements = form.elements;
  var data = Object.create(null);

  Array.from(elements).forEach((control) => {
    if (!control.name) return;

    var record = {
      type: control.type,
      value: control.value,
      disabled: control.disabled
    };
    
    if (!(control.name in data))
    {
      data[control.name] = record;
    }
    else
    {
      data[control.name] = [].concat(data[control.name], record);
    }
  });

  console.log(data);

I discovered on this occasion

  [].concat(any, record)

to be a nice way to put values in an Array regardless whether there already 
was one :)

-- 
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.