Re^3: Search Engine Output needs sorting

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

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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]