.

src/Quiz.js

@@ -9,7 +9,11 @@ const QnA = [
     { Q: "3 - 1 = ?", Choose: [1, 2, 3, 4], N: 3 }
 ]
 
-let Answers = [0,0,0]
+let localQnA = JSON.parse(localStorage.getItem('QnA'))
+
+
+
+let Answers = [0, 0, 0]
 localStorage.setItem('Answers', JSON.stringify(Answers))
 let Solutions = [4, 3, 2]
 localStorage.setItem('Solutions', JSON.stringify(Solutions))
@@ -22,8 +26,23 @@ function Quiz() {
 
     const [timeout, settimeout] = useState(false)
 
+    let Answer = []          //빈 배열
+    console.log(localQnA)
+    localQnA.map((x) => {      //A만 꺼내서 q에 추가
+        
+        return Answer.push(x.A)
+    })
+    localStorage.setItem("localAnswer", JSON.stringify(Answer))  //그걸 로컬에 저장
+
+    let finalQnA = localQnA.map((x, index) => {
+        //delete x.A                       //A 삭제
+        return { ...x, N: index + 1 }    //N 추가
+    })
+
+
+
     function handleQuestion() {
-        setQuestion({ ...QnA[question.N]})
+        setQuestion({ ...QnA[question.N] })
         setSelected("") //페이지 넘어가면 selected 초기화
     }
 
@@ -34,64 +53,65 @@ function Quiz() {
     }
     return (
         <>
-         <div className="container-fluid">
-            <div className="text-center h2 font-weight-bold bg-warning py-2">미적분학 퀴즈</div>
-            <div className="row justify-content-md-center" >
-                <div className="col text-right">
-                    <h1>
-                        <img src={logo} width='50' height='50' alt='question' />
-                    </h1>
-                </div>
-                <div className="col-md-auto">
-                    <div className="h2 mt-2">
-                        {question.Q}
+            <div className="container-fluid">
+                <div className="text-center h2 font-weight-bold bg-warning py-2">미적분학 퀴즈</div>
+                <div className="row justify-content-md-center" >
+                    <div className="col text-right">
+                        <h1>
+                            <img src={logo} width='50' height='50' alt='question' />
+                        </h1>
                     </div>
-                    <div className="mt-2">
-                        <form>
-                            {question.Choose.map((a, index) =>
-                                <div>
-                                    <input type="radio" name='answer' id={index} value={a} onChange={handleChange} checked={selected === String(a)} />
-                                    <label className="font-weight-bold" htmlFor={a}>{a}</label>
-                                </div>
-                            )}                          
-                        </form>
-                        <span className="h5 font-weight-bold"> Your Answer :</span>
-                        <span className="h2 font-weight-bold text-danger"> {selected}</span>  {/* 선택한 값 보여줌 */}
-                        <div className="text-center my-3"> {(question.N-1 === QnA.length - 1)
-                            ? <Link to="/end">
-                                <button className="btn btn-outline-success" onClick={localStorage.setItem('Solutions', JSON.stringify(Solutions))}>제출</button>
-                            </Link>
-                            : <button type="button" className="btn btn-outline-dark" onClick={handleQuestion}>다음</button>
-                        }
+                    <div className="col-md-auto">
+                        <div className="h2 mt-2">
+                            {question.Q} {localQnA[0].Q}
                         </div>
-                        <p className="h3 text-center text-danger ">
-                            <Timer
-                                initialTime={30010}
-                                direction="backward"
-                                checkpoints={[
-                                    {time:1,
-                                        callback:()=>alert('시간이 초과되었습니다.'),
-                                    },
-                                    {
-                                        time: 0,
-                                        callback: () => settimeout(true),
-
-                                    }
-                                ]}
-                            >
-                                {() => (
-                                    <>
-                                        <Timer.Minutes /> : <Timer.Seconds></Timer.Seconds> / 30 : 00                        </>
+                        <div className="mt-2">
+                            <form>
+                                {question.Choose.map((a, index) =>
+                                    <div>
+                                        <input type="radio" name='answer' id={index} value={a} onChange={handleChange} checked={selected === String(a)} />
+                                        <label className="font-weight-bold" htmlFor={a}>{a}</label>
+                                    </div>
                                 )}
-                            </Timer>     {/* npm i react-compound-timer */}
-                        </p>
+                            </form>
+                            <span className="h5 font-weight-bold"> Your Answer :</span>
+                            <span className="h2 font-weight-bold text-danger"> {selected}</span>  {/* 선택한 값 보여줌 */}
+                            <div className="text-center my-3"> {(question.N - 1 === QnA.length - 1)
+                                ? <Link to="/end">
+                                    <button className="btn btn-outline-success" onClick={localStorage.setItem('Solutions', JSON.stringify(Solutions))}>제출</button>
+                                </Link>
+                                : <button type="button" className="btn btn-outline-dark" onClick={handleQuestion}>다음</button>
+                            }
+                            </div>
+                            <p className="h3 text-center text-danger ">
+                                <Timer
+                                    initialTime={3001000}
+                                    direction="backward"
+                                    checkpoints={[
+                                        {
+                                            time: 1,
+                                            callback: () => alert('시간이 초과되었습니다.'),
+                                        },
+                                        {
+                                            time: 0,
+                                            callback: () => settimeout(true),
+
+                                        }
+                                    ]}
+                                >
+                                    {() => (
+                                        <>
+                                            <Timer.Minutes /> : <Timer.Seconds></Timer.Seconds> / 30 : 00                        </>
+                                    )}
+                                </Timer>     {/* npm i react-compound-timer */}
+                            </p>
+                        </div>
+                    </div>
+                    <div className="col">
                     </div>
-                </div>
-                <div className="col">
                 </div>
             </div>
-        </div>
-        {timeout ? <Redirect to='/end'/> : '' }
+            {timeout ? <Redirect to='/end' /> : ''}
         </>
     )