1. When do I use 'my' before an array and when don't I?
2. Now with this script I get an error. Does this code '{$a <=> $b}' work with only numbers? 
#!/usr/bin/perl
use strict;
use warnings;

my@array = qw(one two three four five six seven eight nine ten);
print "The original array contains - @array \n";
my@sorted = sort {$a <=> $b} @array;

print "The sorted array contains @sorted \n";

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The original array contains - one two three four five six seven eight nine ten
Argument "one" isn't numeric in sort at C:\JPARK\JPERL\test.pl line 7.
Argument "two" isn't numeric in sort at C:\JPARK\JPERL\test.pl line 7.
Argument "three" isn't numeric in sort at C:\JPARK\JPERL\test.pl line 7.
. . . The sorted array contains one two three four five six seven eight nine ten

In reply to Re^2: Compilation error by truthseeker66
in thread Compilation error by truthseeker66

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