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190

Typical uses of $#array

• The C-style for loop, which we've already discussed:

        for ($i=0; $i <= $#array; $i++) {
          # do something with $array[$i]
        }

• Better:

        for my $element (@array) {      
          # do something with $element
        }

• If you need the value of $i inside the loop, $#array is a good choice:

        for my $i (0 .. $#array) {      
          # do something with $i
        }

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Copyright © 2002 M. J. Dominus