Re^2: Printing a Hash Slice problem

Dear Taumarill,

Thanks for answering. Just a question regarding your code above:

my $mc = (sort {$$HoA{$a}[0] <=> $$HoA{$b}[0]} keys %$HoA)[-1];
[download]

1. What does '-1' means here?
2. Why '=' sign? Basically what does the statement above means?
How does it work?

Regards,
Edward

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Re^3: Printing a Hash Slice problem by jhourcle (Prior) on Mar 03, 2005 at 01:18 UTC
`[-1]` is a negative array index, which lets you count from the other end of an array. `$array[-1]` is the same as `[reverse @array]->[0]` or `$array[$#array]` `<=>` is a comparison operator for numbers, similar to `cmp` for strings. (see perlop or the sort documentation)	[reply] [d/l] [select]