Arrays and Hashes

Variable Interpolation of Arrays

• Variables can be interpolated into double quoted strings just like sclalars, but with one additional rule.
• The index expression for the array is computed just like a regular Perl expression... like it was not inside the double quotes.
• The result of this operation will then be used for the index value into the array.
• Example:
  

  @Results = qw(one two three four five); 
  $Which = 2; 
  print "The $Which - 1th value is $Results[$Which - 1]\n"; 
  ==> The 2 - 1th value is two