The second example (preventing warnings) can just as easily use || and get the same results as //. That said, I have used your example many, many times when writing for a closed environment, mostly for the reasons you give.

No, it cannot, as 0 in most cases is a valid value, very valid. With || it would be replaced.

Just use it, and see how many unmeant problems suddenly disappear.

Where || does work well, is when the default for a value is 0, most of which are boolean-like values:

my $hidden = $cell->{Hidden} || 0;

[download]

true values stay, false values (undef, "", 0 and "0" all get replaced with 0. Replacing 0 with 0 does not hurt.


Enjoy, Have FUN! H.Merijn

In reply to Re^4: Make $^V and "my" implicit by Tux
in thread Make $^V and "my" implicit by gunzip

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