How to Iterate Over an Array in Perl


How to Iterate Over an Array in Perl ?

Answer

To iterate over an array in Perl, you can use foreach loops or array index iteration.



✐ Examples

1 Iterate Over Integer Array with foreach Loop

In this example,

  1. We create an integer array named @numbers with some values.
  2. We use a foreach loop to iterate over each element of the array and print the elements.

Perl Program

@numbers = (1, 2, 3, 4, 5);
foreach my $num (@numbers) {
  print "$num\n";
}

Output

1
2
3
4
5

2 Iterate Over String Array with Array Index

In this example,

  1. We create a string array named @fruits with some values.
  2. We use an array index to iterate over each element of the array and print the elements.

Perl Program

@fruits = ("apple", "banana", "cherry");
for my $i (0 .. $#fruits) {
  print "$fruits[$i]\n";
}

Output

apple
banana
cherry

Summary

In this tutorial, we learned How to Iterate Over 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 ?