databricks.koalas.Series.str.find

str.find(sub, start=0, end=None) → ks.Series

Return lowest indexes in each strings in the Series where the substring is fully contained between [start:end].

Return -1 on failure. Equivalent to standard str.find().

Parameters
substr

Substring being searched.

startint

Left edge index.

endint

Right edge index.

Returns
Series of int

Series of lowest matching indexes.

Examples

>>> s = ks.Series(['apple', 'oranges', 'bananas'])
>>> s.str.find('a')
0    0
1    2
2    1
dtype: int64
>>> s.str.find('a', start=2)
0   -1
1    2
2    3
dtype: int64
>>> s.str.find('a', end=1)
0    0
1   -1
2   -1
dtype: int64
>>> s.str.find('a', start=2, end=2)
0   -1
1   -1
2   -1
dtype: int64