Re: JavaScript in a PRE element of an HTML document

From	Denis McMahon <denismfmcmahon@gmail.com>
Newsgroups	comp.lang.javascript
Subject	Re: JavaScript in a PRE element of an HTML document
Date	2014-03-09 22:16 +0000
Organization	A noiseless patient Spider
Message-ID	<lfip84$46g$1@dont-email.me> (permalink)
References	<JavaScript-20140308234930@ram.dialup.fu-berlin.de> <lfgsk3$hlv$1@dont-email.me> <teaching-frame-20140309152656@ram.dialup.fu-berlin.de>

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On Sun, 09 Mar 2014 14:31:15 +0000, Stefan Ram wrote:

> I plan to use
> 
> <!DOCTYPE HTML><html><head><title>T</title><meta
> charset="UTF-8"></head><body><pre><code><script>
> ...
> </script></code></pre></body>

>   as a general frame for such JavaScript teaching examples:

It might be a good idea to add a type attribute to your script element.

I see no closing tag for the html element.

I believe it is suggested that a charset line should appear as early as 
possible, as it's presence may require that the document be reprocessed. 
This usually means that, as I understand it, best practice is for it to 
be the first element in the document head.

Have you considered using a textarea as the output region, rather than an 
inline part of the document? Doing so would allow output from interactive 
elements on the page at some future point, and would allow you to 
separate the script code from the document structure.

<!DOCTYPE HTML>
<html>
    <head>
        <meta charset="UTF-8">
        <title>T</title>
        <script type="text/javascript">
            function the_code() {
                var o = document.getElementById("output");
                var a = 5;
                o.value = ""; // clear the output area
                o.value += "1) a = " + a + "\n";
                o.value += "2) a + 1 = " + ( a + 1 ) + "\n";
                o.value += "3) a = " + a + "\n";
            }
        </script>
    </head>
    <body>
        <p><input type="button" value="Run The Code" onclick="code();"></
p>
        <h3>Output:</h3>
        <textarea cols="80" rows="10" id="output" readonly="readonly"></
textarea>
    </body>
</html>

-- 
Denis McMahon, denismfmcmahon@gmail.com

Thread

Re: JavaScript in a PRE element of an HTML document "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2014-03-09 07:01 +0200
  Re: JavaScript in a PRE element of an HTML document "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2014-03-09 17:05 +0200
    Re: JavaScript in a PRE element of an HTML document Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-03-09 17:15 +0100
    Re: JavaScript in a PRE element of an HTML document "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2014-03-09 19:25 +0200
      Re: JavaScript in a PRE element of an HTML document "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2014-03-09 19:44 +0100
    Re: JavaScript in a PRE element of an HTML document Dr J R Stockton <reply1400@merlyn.demon.co.uk.invalid> - 2014-03-10 18:01 +0000
      Re: JavaScript in a PRE element of an HTML document "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2014-03-11 09:59 +0100
  Re: JavaScript in a PRE element of an HTML document Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-03-09 16:54 +0100
  Re: JavaScript in a PRE element of an HTML document Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-03-09 16:30 +0000
  Re: JavaScript in a PRE element of an HTML document Denis McMahon <denismfmcmahon@gmail.com> - 2014-03-09 22:16 +0000
    Re: JavaScript in a PRE element of an HTML document "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2014-03-10 07:30 +0200

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