Forward Reference : Variable Scope « Language Basics « Perl






  1. Perl
  2. Language Basics
  3. Variable Scope

Forward Reference

    

#!/usr/bin/perl
sub bye;  # Forward reference

$name="Tom";
print "Hello $name.\n";

bye;      # Call subroutine without the ampersand

sub bye{
    print "Bye $name\n";
}








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6.Scope of Variables: Variables used in subroutines are global by default