Re^2: Search Engine Output needs sorting

Thanks for the insightful tip! However I'm not sure what that changes, since it was working before. Did I over compensate using the 'defined' function (which I used when I saw the uninitialized error)? <\p>

I haven't encountered the $# before, does @ not work? Thanks again!

Comment on Re^2: Search Engine Output needs sorting

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Re^3: Search Engine Output needs sorting by johngg (Canon) on May 28, 2011 at 13:17 UTC
Using `@array` in scalar context gives the number of elements in the array whereas `$#array` gives the index of the last element. `knoppix@Microknoppix:~$ perl -E ' > @array = ( 1 .. 5 ); > say qq{@array}; > say scalar @array; > say $#array;' 1 2 3 4 5 5 4 knoppix@Microknoppix:~$` [download] I hope this is helpful. Cheers, JohnGG	[reply] [d/l] [select]
Re^4: Search Engine Output needs sorting by Anonymous Monk on May 28, 2011 at 14:04 UTC
Thanks for clear explanation. Does ^# give the index of the first element? Don't why you'd need it, just curious.	[reply]
Re^4: Search Engine Output needs sorting by Anonymous Monk on May 28, 2011 at 14:12 UTC
Reply didn't work... Does ^# give first index? Don't know why you'd need, but curious.	[reply]
Re^5: Search Engine Output needs sorting by johngg (Canon) on May 28, 2011 at 14:44 UTC
Interesting piece of lateral thinking but, no! By default, array subscripts are zero based in Perl so the first index is `0` and first element is `$array[ 0 ]`. You could change that behaviour by altering a Perl built-in variable but its side effects can be unexpected and its use is deprecated so you really don't want to go there and I won't even tell you which variable it is :-) Cheers, JohnGG	[reply] [d/l] [select]