fix(striker-ui): add undefined to type map

striker-ui/components/InputWithRef.tsx

@@ -36,6 +36,7 @@ type InputForwardedRefContent<TypeName extends keyof MapToType> = {
 const MAP_TO_INITIAL_VALUE: MapToType = {
   number: 0,
   string: '',
+  undefined,
 };
 
 const INPUT_WITH_REF_DEFAULT_PROPS: Required<

striker-ui/lib/consts/MAP_TO_VALUE_CONVERTER.ts

@@ -1,6 +1,7 @@
 const MAP_TO_VALUE_CONVERTER: MapToValueConverter = {
   number: (value) => parseInt(String(value), 10) || 0,
   string: (value) => String(value),
+  undefined: () => undefined,
 };
 
 export default MAP_TO_VALUE_CONVERTER;

striker-ui/lib/isEmpty.ts

@@ -7,6 +7,7 @@ type MapToValueIsEmptyFunction = {
 const MAP_TO_VALUE_IS_EMPTY_FUNCTION: MapToValueIsEmptyFunction = {
   number: (value = 0) => value === 0,
   string: (value = '') => value.trim().length === 0,
+  undefined: () => true,
 };
 
 const isEmpty = <TypeName extends keyof MapToType>(

striker-ui/types/MapToType.d.ts

@@ -1,6 +1,7 @@
 declare type MapToType = {
   number: number;
   string: string;
+  undefined: undefined;
 };
 
 declare type MapToValueConverter = {