@a = sort map { int(rand(91))+10 } 1..5;

In the absence of a sort comparison block, the default sort ordering is lexicographic-ascending (see Lexicographical order). This ordering produces surprising 'maximum' values — and also 'minimum' values if negative numbers are considered. An explicit numeric-ascending comparison block is needed if  $a[0] and  $a[$#a] are to make sense as numeric min/max values. 

>perl -wMstrict -MData::Dump -le
"my @raw = (1, 2, 3, -1, -2, -12, 123, 23);
 ;;
 my @sorted_lexical_ascending = sort @raw;
 dd \@sorted_lexical_ascending;
 ;;
 my @sorted_numeric_ascending = sort { $a <=> $b } @raw;
 dd \@sorted_numeric_ascending;
"
[-1, -12, -2, 1, 123, 2, 23, 3]

[-12, -2, -1, 1, 2, 3, 23, 123]

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In reply to Re^2: Finding target unspecified value by AnomalousMonk
in thread Finding target unspecified value by Latnam

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