polars.Expr.str.json_extract

Expr.str.json_extract(

dtype: PolarsDataType | None = None,

infer_schema_length: int | None = 100,

) → Expr

Parse string values as JSON.

Deprecated since version 0.19.15: This method has been renamed to json_decode().

Parameters:

dtype

The dtype to cast the extracted value to. If None, the dtype will be inferred from the JSON value.

infer_schema_length

The maximum number of rows to scan for schema inference. If set to None, the full data may be scanned (this is slow).