How to Replace Character at Specific Index in String in Perl - Step by Step Examples

How to Replace Character at Specific Index in String in Perl ?

Answer

To replace a character at a specific index in a string in Perl, you can directly access the characters of the string using substr and splice functions.


✐ Examples

1 Replace character at specific index in a string

In this example,

  1. We create a string named $str.
  2. We use the substr function to extract the characters before and after the desired index.
  3. We concatenate the character to be replaced with the substrings obtained.
  4. Finally, we print the modified string $str.

Perl Program

$str = "Hello World";
$index = 6;
$new_char = 'x';
$str = substr($str, 0, $index) . $new_char . substr($str, $index + 1);
print $str;

Output

Hello xorld

Summary

In this tutorial, we learned How to Replace Character at Specific Index in String in Perl language with well detailed examples.


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