window dimension hook cleanup

src/helpers/useWindowSize.jsx

@@ -1,35 +1,28 @@
 import { useState, useEffect } from 'react';
 
 export default function useWindowSize() {
-  // Initialize state with undefined width/height so server and client renders match
-  // Learn more here: https://joshwcomeau.com/react/the-perils-of-rehydration/
   const [windowSize, setWindowSize] = useState({
     width: undefined,
     height: undefined,
   });
   useEffect(() => {
-    // Handler to call on window resize
     function handleResize() {
-      // Set window width/height to state
       if (typeof window !== 'undefined') {
         setWindowSize({
           width: window.innerWidth,
           height: window.innerHeight,
         });
       }
     }
-    // Add event listener
     if (typeof window !== 'undefined') {
       window.addEventListener('resize', handleResize);
       handleResize();
     }
-    // Call handler right away so state gets updated with initial window size
-    // Remove event listener on cleanup
     return () => {
       if (typeof window !== 'undefined') {
         window.removeEventListener('resize', handleResize);
       }
     };
-  }, []); // Empty array ensures that effect is only run on mount
+  }, []);
   return windowSize;
 }