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Re: Defined vs. undefinedby xdg (Monsignor) |
on Feb 10, 2006 at 12:15 UTC ( [id://529339]=note: print w/replies, xml ) | Need Help?? |
The real issue you have is that when the hash is empty, @keyarr gets no values from keys %hash. Thus, $keyarr[0] is undefined, causing the warning. However, when the hash is not empty, @keyarr has values, so $keyarr[0] is defined and doesn't trigger the warning. Add a print statement to show what's in @keyarr and then it may be clearer to you what is happening.
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