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From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: Retrieve a select from a table cell
Date: Wed, 15 Jul 2015 11:47:12 +0200
Organization: PointedEars Software (PES)
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danca (Daniele Campagna) wrote:

> […] The DOM inspector did not show the spaces, […]

You need to enable “Show whitespace characters” and the like.

See also <http://devtoolsecrets.com/> (referred to by the FAQ).

> Here is the code, JFC:
> 
> function inspect(anOb,aFrame){
> // caveat: some properties are not visible, and others raise an exception

/Essato/.  With a for-in statement you only get the *enumerable* properties, 
and you cannot convert all property values to string.  In theory, ES 5’s 
Object.getOwnPropertyNames(…) gives you the names of all own property names, 
regardless whether the property is enumerable; but I have observed that it 
does not work that well with host objects – the array may be empty, 
unexpectedly.  However, the two approaches can be combined for a more 
complete picture.  (I wonder how they are doing it in the DOM Inspector; 
probably it is just a matter of UTSL.)

>   var txt="";
>   if (!aFrame) aFrame=window.open()
>    if (z) clearTimeout(z);
>     inside=0

Undeclared identifier.  (You *really* want to use strict mode, and JSHint.)

>     for(var prop in anOb){
>      […]
>      try{
>      txt=txt+" = "+anOb[prop]
>      }catch(e){
>      if (inside==0)  {var z=setTimeout(function()
>      {inspect(aBox,aDoc,isWr)},333)

Why?

> […]
> }
> 
> It is a Q&D way to see the internals of an object, so I was planning to
> write onclick=inspect(this)... :-)

  onclick="console.log(this)"

-- 
PointedEars
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