orderBy cannot be null (string or undefined) (#44)

`orderBy` property can be string | undefined, since we need in the
solution to enable the strict mode.

Author: Michele-Masciave

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.8.0] - 2023-06-29
+
+### Changed
+
+- `orderBy` property of `QueryFunction` type can be string or undefined.
+
 ## [2.7.2] - 2023-06-29
 
 ### Fixed

src/lib/DataTable/DataTableTypes.ts

@@ -4,7 +4,7 @@ export type QueryFunction<T, TFilter> = (
   filter: TFilter,
   limit?: number | undefined,
   page?: number | undefined,
-  orderBy?: string | null | undefined,
+  orderBy?: string | undefined,
   asc?: boolean | undefined,
 ) => Promise<TableQueryResult<T>>;