# 🏅 5/4 (二) 每日任務 Day 7
###### tags: `Vue 直播班 - 2021 夏季班`

題目 (使用 CodePen 作答)
---
小明有固定存錢的好習慣，以下是小明的銀行帳戶資訊。
1. 請協助他將存款資訊 mingTransfer 的內容合併到 mingAccount.depositRecord 陣列中 (使用 `.push()`)。
2. 請將他各月的存款累加到 mingAccount.deposit 中 (可以使用 `forEach()` 或 `reduce()`)

參考: https://developer.mozilla.org/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce

// 小明的銀行帳戶資訊
let mingAccount = {
  name: '小明',
  age: 22,
  deposit: 10000,
  depositRecord: [
    {
      title: '開戶',
      amounts: 10000
    }
  ]
};
// 小明的存款資訊
let mingTransfer = [
  {
    title: '一月存款',
    amounts: 777
  },
  {
    title: '二月存款',
    amounts: 7000
  },
  {
    title: '三月存款',
    amounts: 70000
  }
]
console.log(mingAccount);

回報流程
---
請同學依照下圖教學觀看解答、回報答案:


回報格式如下圖，請在「回報區」使用註解回報答案 (為了統計人數，請同學依序加上「報數」)


<!-- 解法一
mingTransfer.forEach(item => {
mingAccount.depositRecord.push(item);
mingAccount.deposit += item.amounts;
})
console.log(mingAccount);
-->

<!-- 解法二
mingTransfer.forEach(item => {
mingAccount.depositRecord.push(item);
})
mingAccount.deposit = mingAccount.depositRecord.reduce((prev, curr) => {return prev + curr.amounts}, 0);
console.log(mingAccount);
-->

回報區
---
<!-- 1:Alpha
codepen:https://codepen.io/alphatero/pen/NWdQQEQ
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<!-- 2:Jasmin
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<!-- 3:Lina Chen
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<!-- 16: Li Shang
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<!-- 報數 17 : SeanLiu
codepen:https://codepen.io/LuckyTiger/pen/yLMBBKo -->

<!-- 報數18： youting
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<!-- 報數19： shoppingq
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<!-- 報數25: Larry
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<!-- 報數26: Joe Kuo
codepen: https://codepen.io/alertislow/pen/ExWYaWy?editors=0012
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<!-- 報數27: Ray
codepen: https://codepen.io/posidomcode/pen/OJpLPza
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<!-- 報數28: Carrie
codepen: https://codepen.io/echocarriet/pen/BaWByMe
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<!-- 報數29: 圈圈
codepen: https://codepen.io/wei-the-lessful/pen/gOmYbpe
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<!-- 報數30: Dah
codepen: https://codepen.io/hua0124/pen/yLMBNBJ
-->

<!-- 報數31: Iven
每日任務回饋 (選填):
沒想到要先用forEach把值取出來在push到原本的陣列裡面。
codepen: https://codepen.io/rtorihnk/pen/xxqKGKp?editors=0012
-->

<!-- 報數 32 : SONYKO
ㄏㄡˊ ～～ 前面的沒報數 ((((
codePen: https://codepen.io/s_syoujyo/pen/xxqKGdz
-->

<!-- 報數 33：家齊
Codepen: https://codepen.io/jacky298/pen/ExWYjbL
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<!-- 報數 34：Chiang
Codepen: https://codepen.io/ChiangJ/pen/bGqbdpN?editors=0011
-->

<!-- 報數35: leolee
每日任務回饋 (選填):
小明3月的存款高達7萬是中樂透了嗎?
codepen: https://codepen.io/nekorice/pen/yLMByMB
-->

<!-- 報數35: jimmyFang
codepen: https://codepen.io/pohxiqqo/pen/ExWYPyK
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<!-- 報數39: Stacey Huang
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<!-- 報數40: Stacey Huang
Codepen:https://codepen.io/yxzzktmb/pen/xxqKEgE?editors=0011
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<!-- 同學不好意思，我們剛同時編輯了，要在麻煩你再改一下名字唷，我往下加 :) -->

<!-- 報數41: JessieCheng
每日任務回饋:
想詢問關於 reduce 用法：array1.reduce((accumulator, currentValue, currentIndex, array2) => accumulator + currentValue, initialValue)
function 裡面的參數 array2 就等於呼叫 reduce 的 array1，不知道什麼時機會使用到 array 呢？
Codepen: https://codepen.io/JessieMosbi/pen/abJoByG?editors=0011
-->

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<!-- 報數60: Amber
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<!-- 報數61: Josh Fang
mingTransfer.forEach(item => {
mingAccount.depositRecord.push(item);
mingAccount.deposit += item.amounts;
});
-->

<!--報數62: Fred Chang
CodePen: https://codepen.io/fred8196/pen/eYvYPMv?editors=1111
-->

<!--報數63: Yiren
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<!--報數64: Chiayu
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<!--報數65: Channing
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<!--報數66: Tofu Tseng
每日任務回饋：
希望 reduce 的部分可以說明：
1. 為何 prev 不需要寫成 prev.amounts？
2. 中間 reduce 實際做了哪些事？
為何只要在 return prev + curr.amounts 就可以回傳所有的總和？console.log 也只能知道他做了加總的動作，但其實不太理解。

CodePen: https://codepen.io/Tofutseng/pen/QWpwJEE?editors=0012
-->

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