Address feddback

packages/ui/src/helpers/typeGuards.ts

@@ -2,16 +2,14 @@
  * Checks if `value` is an Object (excludes arrays and functions)
  *
  * @param value
- * @returns
  */
 export const isObject = (value: unknown): value is object =>
   value != null && !Array.isArray(value) && typeof value === 'object';
 
 /**
- * Checks if `value` is a string
+ * Checks if `value` is a string (excludes primitive object wrappers)
  *
  * @param value
- * @returns
  */
 export const isString = (value: unknown): value is string =>
   typeof value === 'string';
@@ -20,7 +18,6 @@ export const isString = (value: unknown): value is string =>
  * Checks if `value` is undefined
  *
  * @param value
- * @returns
  */
-export const isUndefined = <T>(value: T | undefined): value is T =>
+export const isUndefined = (value: unknown): value is undefined =>
   value === undefined;