---
# System prepended metadata

title: "\U0001F3C5 Day 12 - 陣列操作應用"
tags: [2025 Node.js 後端工程師培訓營]

---

# 🏅 Day 12 - 陣列操作應用

### 題目

高雄地區開始實施兵役體檢，只要符合以下其中一個條件就可以免除兵役:
1. BMI >= 35
2. 天生為扁平足 (Flatfoot)

請透過以下程式幫 Bob 判斷一下他需不需要當兵，如果需要，則用陣列方法把他加到 soldierName 陣列裡面。（補上 `...` 的部分）

```javascript=
let soldierName = ["Tom", "Nick", "John"];
let bobBmi = 22;
let isFlatfoot = false;

if(...) {
  console.log("Bob 不用當兵");
} else {
  // 將 Bob 填入國軍名單
  ...
  console.log("Bob 光榮入伍");
  console.log(`名單: ${soldierName}`);
}
```


## 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）

![](https://i.imgur.com/vftL5i0.png)

<!-- 解答：  

```
let soldierName = ["Tom", "Nick", "John"];
let bobBmi = 22;
let isFlatfoot = false;

if(bobBmi >= 35 || isFlatfoot) {
  console.log("Bob 不用當兵");
} else {
  // 將 Bob 填入國軍名單
  soldierName.push("Bob");
  console.log("Bob 光榮入伍");
  console.log(`名單: ${soldierName}`);
}
```

補充說明：
isFlatfoot 為布林值（上方的設定為 false）可以直接作為條件判斷，
若要判斷為 true (與 isFlatfoot 相反)，
可以使用 ! (反轉) => 寫成 `!isFlatfoot` 便能判斷為 true 。
-->



回報區
---
| #   | Discord | CodePen / 答案 |
| --- | ----- | ----- |
| 1 | daffytseng | [Codepen](https://codepen.io/Daffy-Tseng/pen/QwLVqmP) |
| 2 | Wayne_957 | [Codepen](https://codepen.io/Wayne957/pen/ogvPGdw?editors=0011) |
| 3 | HarryKuo | [CodePen](https://codepen.io/harry_kuo/pen/dPbqVKz?editors=0011)|
|  4   |   potato_17859    | [CodePen](https://codepen.io/Girl-Lee/pen/YPKOrvE?editors=0011 )| 
|  5   |   sui_hsilan    | [CodePen](https://codepen.io/suihsilan/pen/ByBOwbM?editors=0011)|
|  6   |   hsiang4100    | [CodePen](https://codepen.io/vvnrbgxl-the-typescripter/pen/bNbxYEX?editors=0011)|
|  7   |   ss585801    | [CodePen](https://codepen.io/ss585801/pen/yyBxBde?editors=1010)|
|  8   |   馬德   | [CodePen](https://codepen.io/maywang/pen/EaYebKX?editors=0012)|
|  9   |   helena   | [CodePen](https://codepen.io/helena27/pen/bNbxYWG?editors=1012)|
|  10   |   Tau   | [CodePen](https://codepen.io/Tau-Hsu/pen/zxOJPVa?editors=0010)|
|  11   |   will092317   | [CodePen](https://codepen.io/xuazoblx-the-flexboxer/pen/mybGpPJ?editors=0012)|
|  12   | bian_yang_mofa | [CodePen](https://codepen.io/cssf998811/pen/azoabeQ?editors=0012)|
|  13   | adengg | [CodePen](https://codepen.io/Osases/pen/yyBxpRx?editors=0012)|
|  14   | ZoeKang|[CodePen](https://codepen.io/byehywmx-the-animator/pen/qEWMoZp?editors=0011)
|  15   | CC(tofuuu_cat) |[CodePen](https://codepen.io/CC-cat/pen/GgKXxQa?editors=0011)
|  16   | Benson | [CodePen](https://codepen.io/DevilButler/pen/OPLoEoo?editors=0011)| 
|  17   | Tammy | [CodePen](https://codepen.io/Tammy_Tsai/pen/qEWMyEP)| 
|  18  | poyi | [CodePen](https://codepen.io/poyi-the-flexboxer/pen/OPLowyq?editors=0012)|
|19| janetlai|[Codepen](https://codepen.io/eiddkqxz-the-builder/pen/OPLowxK?editors=1011)
|  20   | yutzu      | [CodePen]( https://codepen.io/dtafsrmf-the-lessful/pen/YPKOJGZ?editors=0011)| 
|  21   | JanllyGuo  | [CodePen](https://codepen.io/kedugaw/pen/gbYdqee?editors=0010)|
| 22|Nora| [CodePen](https://codepen.io/ehguhcmy-the-reactor/pen/pvzxoON?editors=1111)| 
| 23|wuyuli_21403| [CodePen](https://codepen.io/Job-Wilhelm/pen/vEBVKPP?editors=1010)| 
| 24 | JerryOOO | [CodePen](https://codepen.io/fatiangel/pen/qEWJRZX?editors=0011)| 
|  25.   | pja._.      | [CodePen](https://codepen.io/PJA0103/pen/NPKOXyp?editors=0012 )|
| 26. | Xuan | [CodePen](https://codepen.io/YiXuan-Chen-the-vuer/pen/GgKwgvR)| 
| 27. | shiang | [CodePen](https://codepen.io/shiang29/pen/xbKQYab?editors=0011)| 
|  28.|  地呱     | [CodePen](https://codepen.io/wiibxzdw-the-bold/pen/xbKQJNX?editors=0012) | 
| 29.  | ally_tsao           | [Codepen](https://codepen.io/ggnhmrxv-the-scripter/pen/mybQZBx?editors=0012)|
|  30.   |  Lee | [CodePen](https://codepen.io/leemo-tseng/pen/WbeLGOQ?editors=1112)| 
|  31.  |  Ali  | [CodePen](https://codepen.io/Alicia1117/pen/qEWLXKM)| 
|  32.  | Arsian Kuo | [CodePen](https://codepen.io/Arsian-Kuo/pen/wBwNmgy)|
|  33.  | JC | [CodePen](https://codepen.io/lifetimingwhisper/pen/WbePVNP)|
|  34. |  0111   | [CodePen](https://codepen.io/0111mina/pen/ogvVBdx?editors=0011)| 
|  35.   | 五五(evelyn_hey2024)  | [CodePen]( https://codepen.io/EvelynCH/pen/GgKLqyN )| 
|  36.   | Rylee | [CodePen]( https://codepen.io/ryleezheng/pen/pvzmzBe )
|  37.   | chun0075 | [CodePen]( https://codepen.io/Lin-Angela/pen/bNbJZOY )
| 38 | hsin yu | [CodePen](https://codepen.io/tina2793778/pen/NPKVdrb?editors=0011)| 
39 | li-wei-min| [CodePen](https://codepen.io/leewayne/pen/VYwvJbv?editors=1011)| 

