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Re: Recursively enumerating the global object

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  Re: Recursively enumerating the global object Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-02 06:52 +0100

#28936 — Re: Recursively enumerating the global object

Stefan Ram wrote:

> ram@zedat.fu-berlin.de (Stefan Ram) writes:
>>But why doesn't it find »(G).Math.PI«? When I type in
>>»this.Math.PI«, it is evaluated as intended:
> 
>   It seems that the script was interrupted by an error,
>   and that error might have been caused by the fact that
>   no HTML page was loaded in the browser when I pasted
>   the script into the console.

That is how far you review all your actions, is it not?  “Might have been 
caused”…

document.write() has never been suitable for debugging from the *console*, 
because document.write() after the document has been loaded overwrites it in 
memory/viewport in an unsafe fashion (there should be document.open() before 
and document.close() afterwards); hence window.alert() and console.log(…).

>   It worked when I inserted the script into a web page.
>   Here's the last version:
> […]

If only it were not your usual unreadable, undertested junk.

That said, Object.get*Own*PropertyNames() and Array.prototype.forEach() have 
been introduced with ECMAScript Edition 5 at the earliest (some 
implementations probably had it before it was in the Specification), and 
does not suffice for enumerating the properties of objects.

-- 
PointedEars
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