Expr.str.to_titlecase

methodView source ↗

def to_titlecase() -> Expr

Categories: string

Uppercase the first character and lowercase all the others ones of a string.

Examples

>>> import tabsdata as td
>>>
>>> tf: td.TableFrame ...
>>>
>>> tf.select(td.col("a"), td.col("a").str.to_titlecase().alias("titlecase"))
>>>
┌──────┬───────────┐
│ a    ┆ titlecase │
│ ---  ┆ ---       │
│ str  ┆ str       │
╞══════╪═══════════╡
│ ab   ┆ Ab        │
│ Ab   ┆ Ab        │
│ AB   ┆ Ab        │
│ aB   ┆ Ab        │
│ null ┆ null      │
└──────┴───────────┘