polars.Expr.arr.head#

Expr.arr.head(n: int | str | Expr = 5) Expr[source]#

Slice the first n values of every sublist.

Parameters:
n

Number of values to return for each sublist.

Examples

>>> s = pl.Series("a", [[1, 2, 3, 4], [10, 2, 1]])
>>> s.arr.head(2)
shape: (2,)
Series: 'a' [list]
[
    [1, 2]
    [10, 2]
]