How can I set an object's property read-only to public? - comp.lang.javascript

Message from discussion How can I set an object's property read-only to public?

Jorge

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More options May 9, 4:48 am

Newsgroups: comp.lang.javascript

From: Jorge <jo...@jorgechamorro.com>

Date: Fri, 9 May 2008 01:48:58 -0700 (PDT)

Local: Fri, May 9 2008 4:48 am

Subject: Re: How can I set an object's property read-only to public?

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On May 9, 10:02 am, "Andreas M." <foo...@invalid.invalid> wrote:

> I have an object, that contains a status-property. The status gets set
> by a function internal to that object. This function gets invoked as
> /init();/ and sets the status-property of the outer function.

> If I make that property world-readable via /this/ it will become
> world-writable, too. Is there any way except of defining a getter
> function to an inner property? I would like to get the property via
> /Object.property/ still.

No. There isn't.
Any (non-native) Object.property is writable as long as it's visible.
Reducing the visibility of the status-property (hiding it into a
closure) would protect it, but its getter() would still be r/w anyway,
it could be hijacked to return something != status-property. Viva the
mutability.

--Jorge.

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