polars.Series.extend_constant

Series.extend_constant(
    value: IntoExpr,
    n: int | IntoExprColumn,
) → Series

Extremely fast method for extending the Series with ‘n’ copies of a value.

Parameters:

value

A constant literal value or a unit expression with which to extend the expression result Series; can pass None to extend with nulls.

n

The number of additional values that will be added.

Examples

>>> s = pl.Series([1, 2, 3])
>>> s.extend_constant(99, n=2)
shape: (5,)
Series: '' [i64]
[
    1
    2
    3
    99
    99
]