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checking if variable is defined
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checking if variable is defined


  • Subject: checking if variable is defined
  • From: Graff <email@hidden>
  • Date: Sun, 21 Dec 2003 02:35:08 -0500

I just noticed a little problem with this, my test to see if the variable "openedFile" is defined does not work. What is a proper way to check to see if a variable is defined?

- Ken

On Dec 21, 2003, at 2:29 AM, Graff wrote:

You need to open the file with write permission. You should also close it after you are done. It is also a good practice to put all this in a try block so that you can make sure that no matter what happens the file is closed:
-------------
set theFile to (path to desktop as text) & "mytextfile.txt"
try
set openedFile to open for access theFile with write permission
write "this text" to openedFile
close access openedFile
on error
if openedFile is not "" then
close access openedFile
end if
end try
-------------
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  • Follow-Ups:
    • Re: checking if variable is defined
      • From: Paul Berkowitz <email@hidden>
References: 
 >Write to file (From: John Fowler <email@hidden>)
 >Re: Write to file (From: Graff <email@hidden>)

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