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( ) | 1.關於 React 的 JSX 語法,下列敘述何者錯誤?
(4) |
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| (1) | 只能有一個根元素 (Parent Element) |
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| (2) | 可以直接使用 if-else 語句在 {} 裡面 |
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| (3) | I don't know |
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| (4) | class 屬性必須寫成 className |
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| (5) | 標籤必須有閉合 (如 <input />) |
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( ) | 2.Git 中,哪一個指令是用來將修改過的檔案加入「暫存區 (Staging Area)」?
(17) |
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| (1) | git add . |
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| (2) | git commit |
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| (3) | git push |
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| (4) | git status |
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| (5) | I don't know |
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( ) | 3.下列哪一行程式碼正確建立了 useState?
(6) |
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| (1) | I don't know |
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| (2) | const [count, setCount] = useState(0); |
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| (3) | const count = useState(0); |
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| (4) | const {count, setCount} = useState(0); |
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| (5) | const [count, setCount] = useState = 0; |
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( ) | 4.若希望 useEffect 在變數 count 改變時才執行,依賴陣列應如何設定?
(10) |
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| (1) | I don't know |
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| (2) | [] |
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| (3) | null |
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| (4) | [count] |
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| (5) | useEffect 不支援此功能 |
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( ) | 5.在 React Router 中,若要建立一個不會造成整頁重新整理的超連結,應使用哪個元件?
(14) |
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| (1) | <Link to="..."> |
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| (2) | <a href="..."> |
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| (3) | <Redirect to="..."> |
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| (4) | <Route path="..."> |
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| (5) | I don't know |
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( ) | 6.使用 .map() 產生列表時,React 會要求每個 <li> 必須加上什麼屬性?
(8) |
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| (1) | I don't know |
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| (2) | id |
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| (3) | index |
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| (4) | name |
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| (5) | key |
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( ) | 7.將 function add(a, b) { return a + b; } 改寫為箭頭函式簡寫,下列何者正確?
(2) |
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| (1) | const add = a, b => a + b; |
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| (2) | I don't know |
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| (3) | const add = (a, b) => a + b; |
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| (4) | const add = (a, b) => { a + b } |
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| (5) | const add = (a, b) => return a + b; |
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( ) | 8.關於 Netlify 的 CI/CD 自動部署,下列敘述何者正確?
(19) |
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| (1) | 每次都要手動拖拉資料夾上傳 |
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| (2) | 只要連結 GitHub,執行 git push 後 Netlify 會自動更新網站 |
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| (3) | 必須付費才能使用自動更新 |
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| (4) | 必須自己在終端機輸入 npm run build 才能更新 |
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| (5) | I don't know |
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( ) | 9.在 React 中,若要修改 state 的數值 (例如 count),必須怎麼做?
(7) |
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| (1) | I don't know |
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| (2) | 直接寫 count = count + 1 |
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| (3) | 直接寫 count++ |
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| (4) | 使用 setCount(count + 1) |
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| (5) | 修改 DOM 元素 document.getElementById |
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( ) | 10.若 const user = { name: 'React' },如何正確使用解構賦值取出 name?
(3) |
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| (1) | const { name } = user; |
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| (2) | const name = user(name); |
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| (3) | I don't know |
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| (4) | const name = user; |
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| (5) | const [name] = user; |
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( ) | 11.在現代 JavaScript 中,哪種宣告方式具有「區塊作用域 (Block Scope)」且宣告後不能重新賦值?
(1) |
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| (1) | I don't know |
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| (2) | var |
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| (3) | const |
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| (4) | let |
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| (5) | function |
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( ) | 12.在 React 專案中,npm run build 指令的主要用途是什麼?
(20) |
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| (1) | I don't know |
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| (2) | 啟動開發伺服器 |
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| (3) | 安裝所有套件 |
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| (4) | 打包並壓縮程式碼,產生 dist 資料夾以供正式上線 |
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| (5) | 刪除專案 |
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( ) | 13.若要將本地端的 Git 存檔推送到 GitHub 遠端倉庫,應使用什麼指令?
(18) |
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| (1) | I don't know |
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| (2) | git pull |
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| (3) | git fetch |
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| (4) | git remote |
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| (5) | git push |
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( ) | 14.使用 fetch 串接 API 時,通常會搭配哪個 React Hook 來在畫面載入時觸發請求?
(16) |
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| (1) | I don't know |
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| (2) | useState |
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| (3) | useRef |
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| (4) | useEffect |
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| (5) | useContext |
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( ) | 15.關於 useEffect(() => { ... }, []),當依賴陣列 (Dependency Array) 為空陣列 [] 時,Effect 何時執行?
(9) |
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| (1) | 當任何 state 改變時 |
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| (2) | 永遠不會執行 |
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| (3) | I don't know |
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| (4) | 每次畫面更新時 |
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| (5) | 只在元件第一次渲染 (Mount) 後執行一次 |
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( ) | 16.在 React 中要新增一個項目到陣列 state (如 todos),且不破壞原陣列,應使用什麼語法?
(11) |
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| (1) | todos.push(newItem) |
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| (2) | setTodos(todos + newItem) |
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| (3) | todos.add(newItem) |
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| (4) | I don't know |
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| (5) | setTodos([...todos, newItem]) |
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( ) | 17.使用 Tailwind CSS 時,若要設定文字為紅色且字體加粗,應寫在哪個屬性?
(12) |
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| (1) | style="text-red-500 font-bold" |
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| (2) | className="text-red-500 font-bold" |
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| (3) | class="text-red-500 font-bold" |
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| (4) | css="text-red-500 font-bold" |
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| (5) | I don't know |
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( ) | 18.Tailwind CSS 中,p-4 代表什麼意思?
(13) |
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| (1) | Font size 4px |
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| (2) | Position 4 |
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| (3) | Padding 1rem (通常是 16px) |
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| (4) | Percentage 4% |
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| (5) | I don't know |
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( ) | 19.在 React 中,父元件傳遞資料給子元件,是透過什麼機制?
(5) |
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| (1) | Props |
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| (2) | API |
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| (3) | Event |
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| (4) | I don't know |
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| (5) | State |
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( ) | 20.若出現 "useRoutes() may be used only in the context of a Router component" 錯誤,通常是忘了什麼?
(15) |
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| (1) | I don't know |
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| (2) | 安裝 react-router-dom |
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| (3) | 在 main.jsx 用 <BrowserRouter> 包裹 <App /> |
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| (4) | 在 App.jsx 匯入 Routes |
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| (5) | 忘記寫 <Route> |