fix: allow undefined SliceZone slices and components

src/SliceZone.tsx

@@ -88,29 +88,6 @@ export type SliceZoneComponents<
 		>]: SliceComponentType<Extract<TSlice, SliceLike<SliceType>>, TContext>;
 	};
 
-/**
- * React props for the `<SliceZone>` component.
- *
- * @typeParam TSlice - The type(s) of a Slice in the Slice Zone.
- * @typeParam TContext - Arbitrary data made available to all Slice components.
- */
-export type SliceZoneProps<
-	TSlice extends SliceLike = SliceLike,
-	TContext = unknown,
-> = {
-	/** List of Slice data from the Slice Zone. */
-	slices: SliceZoneLike<TSlice>;
-
-	/** A record mapping Slice types to React components. */
-	components: SliceZoneComponents<TSlice, TContext>;
-
-	/** The React component rendered if a component mapping from the `components` prop cannot be found. */
-	defaultComponent?: SliceComponentType<TSlice, TContext>;
-
-	/** Arbitrary data made available to all Slice components. */
-	context?: TContext;
-};
-
 /**
  * This Slice component can be used as a reminder to provide a proper implementation.
  *
@@ -139,6 +116,29 @@ export const TODOSliceComponent = __PRODUCTION__
 			);
 	  };
 
+/**
+ * React props for the `<SliceZone>` component.
+ *
+ * @typeParam TSlice - The type(s) of a Slice in the Slice Zone.
+ * @typeParam TContext - Arbitrary data made available to all Slice components.
+ */
+export type SliceZoneProps<
+	TSlice extends SliceLike = SliceLike,
+	TContext = unknown,
+> = {
+	/** List of Slice data from the Slice Zone. */
+	slices?: SliceZoneLike<TSlice>;
+
+	/** A record mapping Slice types to React components. */
+	components?: SliceZoneComponents<TSlice, TContext>;
+
+	/** The React component rendered if a component mapping from the `components` prop cannot be found. */
+	defaultComponent?: SliceComponentType<TSlice, TContext>;
+
+	/** Arbitrary data made available to all Slice components. */
+	context?: TContext;
+};
+
 /**
  * Renders content from a Prismic Slice Zone using React components for each type of Slice.
  *

test/SliceZone.test.tsx

@@ -28,6 +28,12 @@ const StringifySliceComponent = ({
 	</div>
 );
 
+test("renders null by default", (t) => {
+	const actual = renderJSON(<SliceZone />);
+
+	t.is(actual, null);
+});
+
 test("renders null if an empty Slice Zone is provided", (t) => {
 	const actual = renderJSON(<SliceZone slices={[]} components={{}} />);