ak.str.join ----------- .. py:module: ak.str.join Defined in `awkward.operations.str.akstr_join `__ on `line 16 `__. .. py:function:: ak.str.join(array, separator, *, highlevel=True, behavior=None, attrs=None) :param array: Array-like data (anything :py:obj:`ak.to_layout` recognizes). :param separator: separator to insert between strings. If array-like, ``separator`` is broadcast against ``array``. :type separator: str, bytes, or array of them to broadcast :param highlevel: If True, return an :py:obj:`ak.Array`; otherwise, return a low-level :py:obj:`ak.contents.Content` subclass. :type highlevel: bool :param behavior: Custom :py:obj:`ak.behavior` for the output array, if high-level. :type behavior: None or dict :param attrs: Custom attributes for the output array, if high-level. :type attrs: None or dict Concatenate the strings in ``array``. The ``separator`` is inserted between each string. If array-like, ``separator`` is broadcast against ``array`` which permits a unique separator for each list of strings in ``array``. Note: this function does not raise an error if the ``array`` does not contain any string or bytestring data. Requires the pyarrow library and calls `pyarrow.compute.binary_join `__. See also: :py:obj:`ak.str.join_element_wise`.