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# pandas.core.strings.StringMethods.cat

`StringMethods.``cat`(others=None, sep=None, na_rep=None)

  Concatenate arrays of strings with given separator

  Parameters : | arr : list or array-like others : list or array, or list of arrays sep : string or None, default None na_rep : string or None, default None If None, an NA in any array will propagate
  Returns : | concat : array

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