---
tags: JS 直播班 - 2023 秋季班
---
# 🏅 Day 20 - 函式與陣列物件整合運用
綜合前幾天函式觀念以及陣列物件相關操作，回答下方問題。
問題
---
依照註解敘述，完成下方程式碼（只需要補上 `...` 的部分，其餘不要更動）
```javascript=
let courses = [
{
title: 'Javascript',
members: 400,
id: 1,
isStarted: true,
isSoldout: true,
tasks: ['主線任務', '每日任務']
}
];
let newCourse = {
title: 'Vue3',
members: 300,
id: 2,
isStarted: false,
isSoldout: true,
tasks: ['主線任務', '每日任務']
};
// 1. 請將 courses 陣列中 id 為 1 的物件，tasks 陣列新增一筆資料為 '每日刷題'。
// 2. 請完成下方函式，將物件做為參數，判斷當課程中的 isSoldout 屬性為 true 時，
// 就將此物件新增到 courses 陣列中，並回傳 courses 陣列的長度
// （只需要補上 ... 的部分，其餘不要更動）
function addCourse(courseObj) {
if(...) {
courses....;
return ...;
console.log('新增成功');
} else {
console.log('無法新增');
return ...;
}
return;
}
let coursesLength = addCourse(newCourse);
// 3. 完成上方程式碼後，選出正確敘述
// 選項：
// (1) 最後程式碼會印出 '新增成功'，而變數 coursesLength 的值會變為 2
// (2) 最後程式碼不會印出任何字串
// (3) 如果 newCourse 的 isSoldout 屬性值為 false 時，執行 addCourse(newCourse) 將不會印出任何字串，也不會回傳 courses 陣列的長度
```
## 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：
```javascript=
let courses = [
{
title: 'Javascript',
members: 400,
id: 1,
isStarted: true,
isSoldout: true,
tasks: ['主線任務', '每日任務']
}
];
let newCourse = {
title: 'Vue3',
members: 300,
id: 2,
isStarted: false,
isSoldout: true,
tasks: ['主線任務', '每日任務']
};
// 1.
courses[0].tasks.push('每日刷題');
// 2.
function addCourse(courseObj) {
if(courseObj.isSoldout) {
courses.push(courseObj);
return courses.length;
console.log('新增成功');
} else {
console.log('無法新增');
return courses.length;
}
return;
}
let coursesLength = addCourse(newCourse);
// 3. 完成上方程式碼後，選出正確敘述
// 答案：(2)
```
-->
回報區
---
| Discord | CodePen / 答案 |
|:----------------:|:----------------------------------------------------------------------------:|
| Yijing | [CodePen](https://codepen.io/Yi-Jing-71080635/pen/PoVGNqM?editors=0011) |
| pinyi_9 | [CodePen](https://codepen.io/Wpypy/pen/WNPGKeO?editors=0011) |
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| xiaokui_71292 | [CodePen](https://codepen.io/pen?template=KKJgBMQ) |
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| yuling | [codepen](https://codepen.io/igzdflpu/pen/qBgayjW)|
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|damon0323|[CodePen](https://codepen.io/swk9eny2/pen/VwgKGLb?editors=0011)|
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| ann6212 | [CodePen](https://codepen.io/yqmegupa-the-styleful/pen/abXmRNE?editors=1011) |
|ShangChu|[CodePen](https://codepen.io/shangchu0412/pen/Exrgdgb?editors=0012)|
| hsu0921 | [CodePen](https://codepen.io/HSUANIN0327/pen/eYxdPzW) |
| 蛋塔| [CodePen](https://codepen.io/Hong-Game1/pen/MWLjPbp)|
| gebyman| [CodePen](https://codepen.io/gebyman/pen/ExrgdPw?editors=0011)|
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| 荷菓かのり | [CodePen](https://codepen.io/oogxwkvw-the-builder/pen/WNPGWPV?editors=0011) |
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| MY | [CodePen](https://codepen.io/ahmomoz/pen/ExrNaPj) |
| Noah | [CodePen](https://codepen.io/lch1222/pen/LYqbEjW?editors=0011) |
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| Peng | [CodePen](https://codepen.io/H-Peng/pen/qBgqara?editors=0010) |
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| Tina02 | [CodePen](https://codepen.io/chjitlox-the-bashful/pen/RwvRbJr) |
| yuan2781 | [CodePen](https://codepen.io/ismebir/pen/poGEByB) |
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| Andy | [CodePen](https://codepen.io/andy31342/pen/zYeoYMV?editors=1012) |
| 白夜 | [CodePen](https://codepen.io/Wei903/pen/JjxbrJp?editors=0012) |
| Joy-Chiang | [CodePen](https://codepen.io/fwysphbw-the-vuer/pen/xxMRpLV?editors=0010) |
| Ataraxia | [CodePen](https://codepen.io/ataraxia8888/pen/ZEwWOQd) |
|OSN|[Codepen](https://codepen.io/osncodepen/pen/LYqbBwp?editors=1112)|
| 歐陽龍龍#1061 | [CodePen](https://codepen.io/dizzydog-rgb/pen/bGzBQqg) |
| hsuhsusophie| [CodePen](https://codepen.io/hsuhsusophie/pen/wvNoQZr?editors=0011) |
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| 郭芙蘭#6374| [CodePen](https://codepen.io/flora_Kuo/pen/Jjxbzom?editors=0011) |
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| Rogan | [CodePen](https://codepen.io/RoganHsu/pen/ZEwLzMK?editors=0011) |
| xuan | [CodePen](https://codepen.io/xuan0915/pen/xxMgbpZ?editors=0012) |
| hsuanlee1084 | [CodePen](https://codepen.io/hsuanlee1024/pen/QWYdbJN?editors=1010) |
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| 依依 | [CodePen](https://codepen.io/Rita-Yang/pen/XWOpKVP?editors=0011) |
| smalljie | [CodePen](https://codepen.io/smalljie/pen/gOqgMor) |
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|⭐️小正| [CodePen](https://codepen.io/colorgolden/pen/ExrWWLY?editors=1111) |
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