When we have a non quoted word before the operator => we only can guarantee that this word won't be interpreted as a sub even when this sub exists. This doesn't mean that a number will be turned into a string, so, this is also valid: 
  %h = ( 1.000 => 'foo' ) ;
  
  print "value: $h{1}\n" ;

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What make this valid: 
  $h{2.000} = 'bar' ;
  
  print "value: $h{2}\n" ;

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What have nothing to do with the operator =>.

Graciliano M. P.
"Creativity is the expression of the liberty".

In reply to Re: Use of the => operator by gmpassos
in thread Use of the => operator by roju

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