# numpy.char.isdigit

char.isdigit(a)

  Returns true for each element if all characters in the string are digits and there is at least one character, false otherwise.

  Calls str.isdigit element-wise.

  For 8-bit strings, this method is locale-dependent.

  Parameters:
    a array_like of str or unicode
  Returns:
    out ndarray

      Output array of bools

  See also

  `str.isdigit`

  Examples

      >>> a = np.array(['a', 'b', '0'])
      >>> np.char.isdigit(a)
      array([False, False,  True])
      >>> a = np.array([['a', 'b', '0'], ['c', '1', '2']])
      >>> np.char.isdigit(a)
      array([[False, False,  True], [False,  True,  True]])