Also, from perldoc perlop:

Binary ".." is the range operator, which is really two different operators depending on the context. In list context, it returns a list of values counting (up by ones) from the left value to the right value. If the left value is greater than the right value then it returns the empty list. The range operator is useful for writing "foreach (1..10)" loops and for doing slice operations on arrays. In the current implementation, no temporary array is created when the range operator is used as the expression in "foreach" loops, but older versions of Perl might burn a lot of memory when you write something like this: 
    
      for (1 .. 1_000_000) {
               # code
           }

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In reply to Re: How to create loop in perl dynamically by Anonymous Monk
in thread How to create loop in perl dynamically by adithi

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