How to Sort an Array in Perl


How to Sort an Array in Perl ?

Answer

To sort an array in Perl, you can use the sort function.



✐ Examples

1 Sort Integer Array in Ascending Order

In this example,

  1. We create an integer array named @numbers with values 5, 2, 8, 1, 6.
  2. We use the sort function to sort the array in ascending order.
  3. Finally, we print the sorted array @numbers to the console.

Perl Program

@numbers = (5, 2, 8, 1, 6);
sort @numbers;
print "Sorted array in ascending order: @numbers\n";

Output

Sorted array in ascending order: 1 2 5 6 8

2 Sort Integer Array in Descending Order

In this example,

  1. We create an integer array named @numbers with values 5, 2, 8, 1, 6.
  2. We use the sort function with a custom comparison function that sorts in descending order.
  3. Finally, we print the sorted array @numbers to the console.

Perl Program

@numbers = (5, 2, 8, 1, 6);
sub desc_sort { $b <=> $a }
@sorted = sort desc_sort @numbers;
print "Sorted array in descending order: @sorted\n";

Output

Sorted array in descending order: 8 6 5 2 1

Summary

In this tutorial, we learned How to Sort an Array in Perl language with well detailed examples.




More Perl Arrays Tutorials

  1. How to Declare an Array in Perl ?
  2. How to Initialize an Array in Perl ?
  3. How to Access Array Elements in Perl ?
  4. How to Access Array Elements using Index in Perl ?
  5. How to get First Element in Array in Perl ?
  6. How to get Last Element in Array in Perl ?
  7. How to check if an Array is Empty in Perl ?
  8. How to check if an Array is Not Empty in Perl ?
  9. How to get Sub Array in Perl ?
  10. How to Get Array Length in Perl ?
  11. How to Iterate Over an Array in Perl ?
  12. How to Iterate Over an Array in Reverse Order in Perl ?
  13. How to get the Index of Specified Element in an Array in Perl ?
  14. How to check if Specified Element is present in the Array in Perl ?
  15. How to count the Number of Occurrences of Specified Element in the Array in Perl ?
  16. How to Sort an Array in Perl ?
  17. How to Sort an Array in Ascending Order in Perl ?
  18. How to Sort an Array in Descending Order in Perl ?
  19. How to create a Two Dimensional Array in Perl ?
  20. How to Iterate over a Two Dimensional Array in Perl ?
  21. How to create a Three Dimensional Array in Perl ?
  22. How to Copy an Array in Perl ?
  23. How to Split an Array in Perl ?
  24. How to Join Arrays in Perl ?
  25. How to check if Two Arrays are Equal in Perl ?
  26. How to check if Two Arrays have Same Elements (Regardless of Order) in Perl ?
  27. How to Convert an Array of Integers to an Array of Strings in Perl ?
  28. How to Convert an Array of Strings to an Array of Integers in Perl ?
  29. How to Reverse an Array in Perl ?
  30. How to Shuffle an Array in Perl ?
  31. How to Rotate Elements in an Array in Perl ?
  32. How to Filter Elements of an Array based on a Condition in Perl ?
  33. How to Declare an Integer Array in Perl ?
  34. How to Declare a Float Array in Perl ?
  35. How to Declare a String Array in Perl ?
  36. How to Remove Duplicates in an Array in Perl ?
  37. How to Remove Specific Element from an Array in Perl ?
  38. How to Remove Element from Array based on a Condition in Perl ?
  39. How to Sort a String Array in Dictionary Order in Perl ?
  40. How to Concatenate Strings in Array in Perl ?