---
tags: 2022 React 新手讀書會
---
# 🏅 Day 11 ｜元件 props 事件處理
props 不僅可以傳遞資料，也可以傳遞函式使用，讓元件共用同一個函式。如以下範例，我們可以將一個 handleClick 傳到 Child 元件內，讓元件點擊時可以根據不同的名稱來改變 Example 的 name 資料值。 因為是動態資料值，所以這邊會使用 `{}` 來將函式傳入。

function Example() {
  const [name, setName] = React.useState("John");
  const handleClick = name => {
    setName(name);
  };
  return (
    <div>
      <p>現在的 Name 是 <b>{name}</b></p>
      <Child name="John" handleClick={handleClick} />
      <Child name="Mary" handleClick={handleClick} />
    </div>
  );
}

在 Child 元件這邊，也同樣是 props 進來就可以使用囉

function Child({ name, handleClick }) {
  return <button onClick={() => handleClick(name)}>{name}</button> 
};

## 題目
請複製 （右下角 fork）這個[範例](https://codepen.io/hexschool/pen/bGvExWE)，運用 props 資料和事件完成 Modal 的開關效果。

## 回報流程
將答案寫在 CodePen 並複製 CodePen 連結貼至底下回報就算完成了喔!
解答位置請參考下圖（需打開程式碼的部分觀看）

<!-- 解答：

function Modal({ open, close }) {
  return <div className="modal" style={{ display: open? 'block' : 'none'}}> 
    <div className="modal-content">Modal 
      <button className="close" onClick={close}> x </button> 
    </div>
  </div>; 
};
function Example() {
  const [open, setOpen] = React.useState(false);
  const toggleOpen = () => {
    setOpen(!open);
  };
  return (
    <div>
      <button onClick={toggleOpen}> Open Modal </button>
      <Modal open={open} close={toggleOpen} />
    </div>
  );
}

-->

回報區
---

| Discord | CodePen / 答案 |
|:-----------------------:|:---------------------------------------------------------------------:|
| Rice#8043 | [CodePen](https://codepen.io/riecball/pen/LYdzjqq?editors=0010) |
| Vita Ora#4585 | [CodePen](https://codepen.io/showlovezz/pen/jOzepqX?editors=0010) |
| 布魯諾#7239 | [CodePen](https://codepen.io/bruno-yu/pen/abYRjZv?editors=1010) |
| yunyun#5215 | [CodePen](https://codepen.io/yun_yunni/pen/XWExBKW) |
| 黃士桓#7654 | [codePen](https://codepen.io/shr-huan-huang/pen/qBoJyqa?editors=1010) |
| huch09#1426 | [Codepen](https://codepen.io/subarashii-huch09/pen/oNqaMBB) |
| HedgehogKU | [CodePen](https://codepen.io/hedgehogkucc/pen/rNdqrjN?editors=1010) |
| DIANAxAKKO#4298 | [Codepen](https://codepen.io/redfire29/pen/RwMeBKL?editors=0010) |
| 棒腿#9350 | [Codepen](https://codepen.io/frankHsu/pen/rNdqrLB?editors=1011) |
| 許揚民 Evan#4546 | [Codepen](https://codepen.io/gitevanhsu/pen/YzaJjNQ?editors=0010) |
| Shau#6400 | [Codepen](https://codepen.io/shau-chen/pen/bGvmjqm) |
| Ayre#0016 | [Codepen](https://codepen.io/yichunlin09/pen/OJvBwpE?editors=0010) |
| JarDar#6980 | [codepen](https://codepen.io/jardarpen/pen/gOeBjWe) |
| Bumble幫啵#0255 | [Codepen](https://codepen.io/pen/LYdgBLx) |
| Timothy#5863 | [Codepen](https://codepen.io/timothy_hippo/pen/ExEdpQy?editors=0010) |
| React-慧茹(拉拉醬)#3414 | [Codepen](https://codepen.io/lala-lee-jobs/pen/QWmZBQP) |
| Dylan_Lin#7320 | [CodePen](https://codepen.io/lin-dylan/pen/KKoGBXL) |
| sheep#4352 | [Codepen](https://codepen.io/chingyeeee/pen/ZExqjMb) |
| rainbow#3329 | [Codepen](https://codepen.io/g901612002/pen/NWYOBmZ?editors=1010) |
| 無名#6427 | [Codepen](https://codepen.io/Nomoney/pen/abYRjRp?editors=0010) |
| AllenW#1132 | [Codepen](https://codepen.io/AllenW/pen/OJvBwrr?editors=1111) |
| Yiling#4054 | [Codepen](https://codepen.io/lin010/pen/RwMeYPe) |
| 威爾#1694 | [CodePen](https://codepen.io/WILL_Wu/pen/ZExqMGp) |
| Carolkiki2003#7399 | [CodePen](https://codepen.io/wasfzuig/pen/KKoGxdd) |
| Tsuei#9284 | [Codepen](https://codepen.io/AlbertoLL/pen/wvmYEKL) |
| Midnightdinner#6220 | [Codepen](https://codepen.io/woowooyong/pen/mdxzGEa) |
| hiYifang #0736 | [Codepen](https://codepen.io/hiYifang/pen/mdxzGVa) |
| ChloeLo#4858 | [Codepen](https://codepen.io/chloelo/pen/zYWmLQN) |
| L0F0#8733 | [Codepen](https://codepen.io/l0f0/pen/zYWmJwE?editors=0110) |
| Yanyan#3555 | [Codepen](https://codepen.io/wei-yi-lee/pen/OJvBoZJ) |
| easton#3863 | [Codepen](https://codepen.io/EastonIsCodingNow/pen/YzaJOvg) |
| Eric Su#7798 | [Codepen](https://codepen.io/wc-su/pen/NWYOLEr) |
| Evonne#7078 | [CodePen](https://codepen.io/Hsu1Fang/pen/vYRVVBB?editors=0111) |
| yuyu#6310 | [CodePen](https://codepen.io/yuyu0905/pen/WNzaaNp?editors=1010) |
| 翔#0859 | [CodePen](https://codepen.io/energy95272z/pen/dymggoB) |
| IreneLee#7932 | [CodePen](https://codepen.io/ntjtcxpt-the-animator/pen/LYdggEv) |
| #雪莉#4827 | [CodePen](https://codepen.io/utshang216/pen/qBoJJBg) |
| wiimax#4564 | [Codepen](https://codepen.io/willismax/pen/gOeBdGN) |
| Robert Lo#9653 | [Codepen](https://codepen.io/Robert-Lo/pen/ExEddQJ?editors=1010) |
| ryo#0160 | [Codepen](https://codepen.io/ryo72/pen/jOzeedp) |
| Kelvin#3296 | [Codepen](https://codepen.io/kelvinchang/pen/wvmYQwm) |
| Wu#0167 | [Codepen](https://codepen.io/Xander0705/pen/QWmZJNJ) |
| EvaLin#4546 | [Codepen](https://codepen.io/evalin0316/pen/RwMeqyQ?editors=1011) |
| RON#2813 | [Codepen](https://codepen.io/Ron115/pen/PoRyxEa) |
| Vada Chen#2055 | [CodePen](https://codepen.io/vadachen/pen/wvmYExK?editors=0010) |
| SHIN#6075 | [CodePen](https://codepen.io/shin9626/pen/xxWymgp) |
| 魚魚#0937 | [CodePen](https://codepen.io/fish0522/pen/PoRyXzg) |
| 露易莎#7673 | [Codepen](https://codepen.io/louisa-lin/pen/ZExqVye) |
| NinaKuo#3332 | [Codepen](https://codepen.io/ninakuo0814/pen/abYRPVq) |
| Mr.Sean#3825 | [Codepen](https://codepen.io/sean_1215/pen/xxWymBa) |
| Rocker#6235 | [Codepen](https://codepen.io/RockerLi/pen/QWmZZaa) |
| Otis#8455 | [Codepen](https://codepen.io/humming74/pen/vYRVPmJ?editors=1111) |
| Kenge#3690 | [Codepen](https://codepen.io/pgkusn/pen/KKoGEWE) |
| TedWang | [Codepen](https://codepen.io/wangtaiyan/pen/Barqbgb?editors=0010) |
| shin#5792 | [Codepen](https://codepen.io/hah1030/pen/poLxBLN?editors=0011) |
| Neal#0665 | [Codepen](https://codepen.io/neallkf/pen/KKoGbXM?editors=0011) |
| Stanley#2505 | [Codepen](https://codepen.io/bigbearada/pen/poLxmEp) |
| Kimi#2092 | [Codepen](https://codepen.io/a3216lucy/pen/OJvBYVN) |
| yoshidc#0455 | [Codepen](https://codepen.io/yoshiyyc/pen/poLxZWX) |
| lingxuan | [Codepen](https://codepen.io/lingxuan0618/pen/ZExqNPw?editors=1010) |
| Ryder#7398 | [Codepen](https://codepen.io/rider159159/pen/eYMPwKN?editors=1010) |
| kyle890721#1016 | [Codepen](https://codepen.io/KYLE890721/pen/PoRyrbQ) |
| 城堡#2126 | [Codepen](https://codepen.io/tthcastle/pen/ZExqgq) |
| 楓之聲#6945 | [Codepen](https://codepen.io/sshane258/pen/vYRVoxQ) |
| Anson#3594 | [Codepen](https://codepen.io/huanmingchang/pen/wvmQMvZ) |
| hw#0715 | [Codepen](https://codepen.io/Lhwei/pen/abYQddw) |
| Mitour#0672 | [CodePen](https://codepen.io/mitour/pen/mdxQVqo) |
| 真．穎旻粉撕#4995 | [CodePen](https://codepen.io/gbnbihif/pen/poLQgxR) |
|niel#2413|[Codepen](https://codepen.io/danielhsu/pen/zYWMrQW)|
|彼得#1923|[Codepen](https://codepen.io/shiou-ho/pen/eYMQZYV)|
|Arista#5802|[Codepen](https://codepen.io/arista-hsieh/pen/KKorzwq)|
|Chelly#6129|[Codepen](https://codepen.io/chellyhsu/pen/GRxwZpg)|
|蘇蘇#0426|[Codepen](https://codepen.io/sabine1123/pen/KKorMwG)|
|LEO#7779|[Codepen](https://codepen.io/nekorice/pen/abYQZvb)|
|JessSong#5050|[Codepen](https://codepen.io/jssanji03/pen/zYWMKNw)|
|LinaChen#1796|[Codepen](https://codepen.io/LinaChen/pen/XWEydRP)|
|ZengZeng|[Codepen](https://codepen.io/tyzyoko/pen/zYWMoRy)|
|JC#8658|[Codepen](https://codepen.io/jcsamoyed/pen/oNqQYrj)|
| IceSam#7836 | [Codepen](https://codepen.io/sam-hsu/pen/KKorNLB) |
|wenyun#2362 | [Codepen](https://codepen.io/wenyuncc/pen/dymQNjR) |
|YJ#1839 | [Codepen](https://codepen.io/cshjufxc/pen/PoRxpox) |
|葉秋#2335 | [Codepen](https://codepen.io/as880074/pen/JjLeXWz?editors=1111) |
|Joechiboo#3960 | [Codepen](https://codepen.io/joe-chiboo/pen/qBoQmNg) |
|aki|[codepen](https://codepen.io/aki168/pen/qBoQXxo)|
| Mao#5230 |[codepen](https://codepen.io/taomaomao/pen/QWmJqpg?editors=0010)|
| charlottelee849#0366 |[codepen](https://codepen.io/charlotte-lee/pen/RwMqLBr)|
| Claire#2116 |[codepen](https://codepen.io/claire-chang-the-bashful/pen/YzaREvx)|
| 山貓(焜)#7041 |[codepen](https://codepen.io/nopeta/pen/wvmQpWZ)|
|aka 宇智波鮪杰寶貝老婆|[codepan](https://codepen.io/wei-nie/pen/poLQPvw?editors=1010)|
|YuZhun#1362|[codepan](https://codepen.io/danzhun/pen/yLKQZOo?editors=1010)|
|眼睛 #0314|[codepan](https://codepen.io/thrizzacode/pen/ExEOJag?editors=0010)|
|KuoMin#4931|[codepan](https://codepen.io/KuoMin/pen/oNqQRBV?editors=1010)|
|moitw|[codepen](https://codepen.io/tsuifei/pen/jOzQjdJ?editors=0111)|
|kancheng#3915|[Codepen](https://codepen.io/kancheng/pen/qBoLWEM)|
| 薯餅#3581 |[Codepen](https://codepen.io/ColdingPoTaTo/pen/KKobPgm)|
|minmin#8960|[codepen](https://codepen.io/minfan-chen/pen/ZExVGyv?editors=1010)|
| Ada |[Codepen](https://codepen.io/zggsoagv-the-scripter/pen/oNqaPWM)|
|ねこ*#9385|[Codepan](https://codepen.io/kunpao0104/pen/dymQQbY)|
|CofCat#9226|[Codepan](https://codepen.io/cofcat456/pen/OJvdZjw)|
|陳sam#9117|[Codepen](https://codepen.io/euldpliv/pen/oNqmVJj)|
|Mori#5582|[Codepen](https://codepen.io/flower9312/pen/oNqVeEB)|
|hahaalin#3209|[Codepen](https://codepen.io/shellyPen/pen/WNzYLyv)|
|larahuang#8309|[Codepen](https://codepen.io/lara1105huang/pen/PoRgBrG)|
|hobby#6565|[Codepen](https://codepen.io/hobbyling/pen/xxWNGNX)|
|eching#9183|[Codepen](https://codepen.io/echin/pen/yLKWver?editors=0010)|
|JimmyChang#5558|[Codepen](https://codepen.io/JimmyChangWenChi/pen/GRxaGpO?editors=0110)|
|Eileen#6454|[Codepen](https://codepen.io/Eileen-io/pen/vYRwLyL)|
|喬喬#2824|[Codepen](https://codepen.io/joanne-wei/pen/wvmbbzX)|
|JimHwang#3594|[Codepen](https://codepen.io/jimh1129/pen/ExEBaez)|
|Li-Ninja#0471|[Codepen](https://codepen.io/li-ninja/pen/xxWoGyg?editors=1011)|
|Overy#4545|[Codepen](https://codepen.io/overy-tsai/pen/WNzqZNJ)
|Kyle Lin#0561|[Codepen](https://codepen.io/thenkyle/pen/JjLgrgR)
|JasonLU|[Codepen](https://codepen.io/wnptocip/pen/XWEvZzL?editors=1011)
|C#4593|[Codepen](https://codepen.io/ShaniMa/pen/YzLGENe)
|GL#2256|[Codepen](https://codepen.io/4genie/pen/LYraymL)
| Nico#8739 | [CodePen](https://codepen.io/Nicof2e/pen/rNQMBZg?editors=0010) |
|Eshiunm|[CodePen](https://codepen.io/Code-My/pen/vYMzbEb)|