if True and len(date_cols) == 1, then conversion (to string from integer/float zero) is not performed
Concatenates elements from numpy arrays in date_cols
into strings.
>>> dates=np.array(['3/31/2019', '4/31/2019'], dtype=object)See :
... times=np.array(['11:20', '10:45'], dtype=object)
... result = concat_date_cols((dates, times))
... result array(['3/31/2019 11:20', '4/31/2019 10:45'], dtype=object)
The following pages refer to to this document either explicitly or contain code examples using this.
pandas._libs.tslibs.parsing.concat_date_cols
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