Defined in awkward.operations.str.akstr_join_element_wise on line 18.

ak.str.join_element_wise(*arrays, highlevel=True, behavior=None)#

Broadcasts and concatenates all but the last array of strings in arrays; the last is used as a separator.

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_element_wise.

Unlike Arrow’s binary_join_element_wise, this function has no null_handling and null_replacement arguments. This function’s behavior is like null_handling="emit_null" (Arrow’s default). The other cases can be implemented with Awkward slices, ak.drop_none, and ak.fill_none.

See also: ak.str.join.