note truthseeker66 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 <=> $b}' work with only numbers? <code> #!/usr/bin/perl use strict; use warnings; my@array = qw(one two three four five six seven eight nine ten); print "The original array contains - @array \n"; my@sorted = sort {$a <=> $b} @array; print "The sorted array contains @sorted \n"; </code> 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 998032 998035