sub a {
   return sprintf("%s", $_[0]);
 }

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Calling sprintf() while legal, is not necessary. printing a string to another hunk of memory and returning that is an unnecessary step. There are some uses of sprintf() in Perl, but they are very, very rare. 
return $_[0];  
return "this is string $some_var";

[download]

In reply to Re^2: Print Vs Return In a Subroutine by Marshall
in thread Print Vs Return In a Subroutine by remya

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