ref

src/Admin.js

@@ -25,7 +25,7 @@ function Admin() {
     function handleClickQuiz(e) {
         indexRef.current = Number(e.target.id) - 1
         console.log(dbRef.current, indexRef.current)
-        setresult(<AdminQuiz quizNum={e.target.id} fn={handleClickSave} data={dbRef.current} />)
+        setresult(<AdminQuiz quizNum={e.target.id} fn={handleClickSave} data={dbRef.current[e.target.id]} />)
 
     }