Re: Test for existence of a variable?
Re: Test for existence of a variable?
- Subject: Re: Test for existence of a variable?
- From: "Mark J. Reed" <email@hidden>
- Date: Thu, 18 Aug 2005 16:13:18 -0400
On 8/18/05, Matt Neuburg <email@hidden> wrote:
> It's Neuburg, and in my copy it says what to do on p. 116: fetch the value
> of the variable and see if you get an error. And it tells you to look in
> chapter 12 for the discussion of how to handle errors. m.
Whups! I apologize for the misspelling. I did find the discussion in
your (excellent!) book after someone pointed out the existence of
"try", which I'd missed.
--
Mark J. Reed <email@hidden>
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