# pandas.CategoricalIndex.intersection

`CategoricalIndex.``intersection`(other)

  Form the intersection of two Index objects.

  This returns a new Index with elements common to the index and other. Sortedness of the result is not guaranteed.

  Parameters: | other : Index or array-like
  Returns: | intersection : Index

  Examples

      >>> idx1 = pd.Index([1, 2, 3, 4])
      >>> idx2 = pd.Index([3, 4, 5, 6])
      >>> idx1.intersection(idx2)
      Int64Index([3, 4], dtype='int64')