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From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: How to make the button disappear upon click?
Date: Wed, 26 Apr 2017 03:33:28 +0200
Organization: PointedEars Software (PES)
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References: <758dd4f9-4905-4bab-91c8-f91e16c50c80@googlegroups.com> <attribute-values-20170425204220@ram.dialup.fu-berlin.de>
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Stefan Ram wrote:

> justaguy <lichunshen84@gmail.com> writes:
>>onclick=addSomething();document.getElementById(id).style.display="none"
> 
>   What seems to be the intended attribute value for the
>   »onclick« attribute is
> 
> addSomething();document.getElementById(id).style.display="none"
> 
>   . It contains a quote character and therefore should be
>   quoted itself (see »§ 1.9. A quick introduction to HTML«
>   in »HTML 5.2 Editor's Draft, 29 December 2016«).

When will you learn to cite properly?

,-<https://w3c.github.io/html/>
| 
| […]
| Publication as a Editors Draft does not imply endorsement by the W3C 
| Membership. This is a draft document and may be updated, replaced or 
| obsoleted by other documents at any time. It is inappropriate to cite
| this document as other than work in progress.

The latest version of HTML5 is the HTML 5.1 Recommendation:

<https://www.w3.org/TR/2016/REC-html51-20161101/introduction.html#a-quick-introduction-to-html>
 
>   (There might be other errors in this code, but I would like
>   to restrict my report to one error only.)

<http://validator.w3.org/nu/> exists.

Of course, to let the button disappear that was clicked, one only needs

  <… onclick="this.style.display = 'none'" …>

In maintainable code, one would probably add a class name instead and let 
the stylesheet specify the formatting:

  <… onclick="this.classList.add('hidden')" …>

-- 
PointedEars
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