Categories

The following methods are available under the expr.cat attribute.

Expr.cat.ends_with(suffix)	Check if string representations of values end with a substring.
Expr.cat.get_categories()	Get the categories stored in this data type.
Expr.cat.len_bytes()	Return the byte-length of the string representation of each value.
Expr.cat.len_chars()	Return the number of characters of the string representation of each value.
Expr.cat.starts_with(prefix)	Check if string representations of values start with a substring.