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Sorting Arrays in Perl
The sort() function in Perl sorts each element of an array according to the ASCII Numeric standards. This function has the following syntax −
Syntax
sort [ SUBROUTINE ] LIST
This function sorts the LIST and returns the sorted array value. If SUBROUTINE is specified then specified logic inside the SUBROUTINE is applied while sorting the elements.
Example
#!/usr/bin/perl # define an array @foods = qw(pizza steak chicken burgers); print "Before: @foods\n"; # sort this array @foods = sort(@foods); print "After: @foods\n";
Output
This will produce the following result −
Before: pizza steak chicken burgers After: burgers chicken pizza steak
Please note that sorting is performed based on the ASCII Numeric value of the words. So the best option is to first transform every element of the array into lowercase letters and then perform the sort function.
Updated on: 29-Nov-2019
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