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Flow Control
FOREACH Loop Feature

  • If a solitary list is used then the loop control variable REFERENCES each value

  • Modifying the loop control variable modifies the list values! 
      @foo = ( "ape", "bat", "cat" );
foreach $animal ( @foo )
{
	$animal .= "-like";
}
  • Avoiding modification 
      @foo = ( "ape", "bat", "cat" );
foreach $animal ( @foo )
{
	$a = $animal;
	$a .= "-like";
}