Driver code
var root = null ; root = insert ( root , 20 ) ; insert ( root , 10 ) ; insert ( root , 5 ) ; insert ( root , 15 ) ; insert ( root , 30 ) ; insert ( root , 25 ) ; insert ( root , 35 ) ; document . write ( " " ) ; inorder ( root ) ; document . write ( " " ) ; leafDelete ( root ) ; document . write ( " " ) ; inorder ( root ) ;