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in reply to Re^2: how many elements in array?
in thread how many elements in array?

Helpful in a loop as in:

for ( 0 .. $#one ) {
   ...do stuff to each element...
}

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—Brad
"The important work of moving the world forward does not wait to be done by perfect men." George Eliot

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Re^4: how many elements in array?
by Limbic~Region (Chancellor) on Apr 18, 2005 at 13:11 UTC
    bradcathey,
    There are lots of ways in which $#array can be useful otherwise it wouldn't exist in the language. My point was more about correctness. For instance, if I am doing the following: 
    my @ucase = grep { $_ eq uc() } @words;
my $cnt = @ucase;

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    I have the count of uppercase words, making all appropriate assumptions about @words. I would need to use $#ucase + 1* since it doesn't produce a count of elements otherwise. This was not clear from the post that I was replying to.

    Cheers - L~R

    * As RazorbladeBidet points out, modifying $[, is one highly discouraged way of accomplishing the same thing.
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