polars.Expr.str.count_match#

Expr.str.count_match(pattern: str | Expr) Expr[source]#

Count all successive non-overlapping regex matches.

Deprecated since version 0.19.3: This method has been renamed to count_matches().

Parameters:
pattern

A valid regular expression pattern, compatible with the regex crate.

Returns:
Expr

Expression of data type UInt32. Returns null if the original value is null.