polars.Expr.arr.last

Expr.arr.last() → Expr

Get the last value of the sublists.

Examples

>>> df = pl.DataFrame({"foo": [[3, 2, 1], [], [1, 2]]})
>>> df.select(pl.col("foo").arr.last())
shape: (3, 1)
┌──────┐
│ foo  │
│ ---  │
│ i64  │
╞══════╡
│ 1    │
│ null │
│ 2    │
└──────┘