bigframes.pandas.api.typing.StringMethods.zfill#

StringMethods.zfill(width: int) → T[source]#

Pad strings in the Series/Index by prepending ‘0’ characters.

Strings in the Series/Index are padded with ‘0’ characters on the left of the string to reach a total string length width. Strings in the Series/Index with length greater or equal to width are unchanged.

Examples:

>>> import bigframes.pandas as bpd

>>> s = bpd.Series(['-1', '1', '1000', pd.NA])
>>> s
0      -1
1       1
2    1000
3    <NA>
dtype: string

>>> s.str.zfill(3)
0     -01
1     001
2    1000
3    <NA>
dtype: string

Parameters:

width (int) – Minimum length of resulting string; strings with length less than width be prepended with ‘0’ characters.

Returns:

Series of objects.

Return type:

bigframes.series.Series