Some readers might like to know that using "not length $s" can easily bite one in quite mundane situations. I'd only use "! length $s".

Not so much I think, I can't remember the last time happened, but then I like to use or and and and () and not && and || :)

In reply to Re^5: Undefined vs empty string (! length, v5.12) by Anonymous Monk
in thread Undefined vs empty string by Anonymous Monk

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