feat(useUpdate): improve memory usage - now single function instance …

…to increment all counters;

src/useUpdate.ts

@@ -1,10 +1,11 @@
-import { useState, useCallback } from 'react';
+import { useCallback, useState } from 'react';
+
+const incrementParameter = (num: number): number => ++num;
 
 const useUpdate = () => {
   const [, setState] = useState(0);
   // useCallback with empty deps as we only want to define updateCb once
-  const updateCb = useCallback(() => setState(cnt => cnt + 1), []);
-  return updateCb;
+  return useCallback(() => setState(incrementParameter), []);
 };
 
 export default useUpdate;