text: 
  var arr = ["this", "is", "a", "dummy", "array"];
  var iter;
  console.log (arr);
  
  // 1. Go for keys()
  
  var keys = arr.keys();
  while (!(iter = keys.next ()).done)
      console.log (iter.value);
  
  // 2. Go for values()
  var values = arr.values();
  while (!(iter = values.next ()).done)
      console.log (iter.value);
  
  // 3. Go for entries()
  var entries = arr.entries();
  while (!(iter = entries.next()).done)
      console.log (iter.value);
  