polars.Series.str.concat#
- Series.str.concat(delimiter: str | None = None, *, ignore_nulls: bool = True) Series [source]#
Vertically concatenate the string values in the column to a single string value.
Deprecated since version 1.0.0: Use
join()
instead. Note that the defaultdelimiter
forjoin()
is an empty string instead of a hyphen.- Parameters:
- delimiter
The delimiter to insert between consecutive string values.
- ignore_nulls
Ignore null values (default). If set to
False
, null values will be propagated. This means that if the column contains any null values, the output is null.
- Returns:
- Series
Series of data type
String
.
Examples
>>> pl.Series([1, None, 2]).str.concat("-") shape: (1,) Series: '' [str] [ "1-2" ] >>> pl.Series([1, None, 2]).str.concat(ignore_nulls=False) shape: (1,) Series: '' [str] [ null ]