Re: Changing the Value Assigned To A Hash Key

Can you post more of the code?
Try running it under perl -w,
It should point out a few possible mistakes
(like comparing a string using ==)

Also, your code is not changing $app{"first_name"} to undef.
It is changing it to "", which is merely an empty string.

Comment on Re: Changing the Value Assigned To A Hash Key

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Re^2: Changing the Value Assigned To A Hash Key by gnurob (Initiate) on Feb 08, 2005 at 20:53 UTC
Hi, thanks for responding. Wow, you guys are f-a-s-t. I think -w is ignored by Windows since it doesn't understand the she-bang. The top of the script does "use warnings". Oh, and the "" are back to undef. That was leftovers from desperate testing. :-)	[reply]
Re^3: Changing the Value Assigned To A Hash Key by ikegami (Patriarch) on Feb 08, 2005 at 21:12 UTC
It's neither ignored on the command line (`perl -w script.pl`) nor on the shebang line (`#!/usr/bin/perl -w`). While Windows doesn't know anything about the shebang line, Perl checks for a shebang line, and treats everything after perl as options.	[reply] [d/l] [select]