# 🏅 Day 04 - 型別陷阱題

### 題目

以下題目請合併為一份 CodePen 繳交，並透過「註解」進行回答。

問題
---
以下變數 a, b, c, d 它們的值、型別各自為何？
( 請先想想看，不要用 console.log 檢查 ᕙ( ˙-˙ )ᕗ )

let a = true + true ;
let b = false + 123 ;
let c = null + 123 ;
let d = null + '123';

範例回答格式：

// a = 值, 型別
// b = 值, 型別

## 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：

a = 2, number
b = 123, number3
c = 123, number
d = 'null123', string

補充文章：https://ithelp.ithome.com.tw/articles/10191180
-->

回報區
---
| # | Discord | CodePen / 答案 |
| --- | ----- | ----- |
| 01 | Jainee| [CodePen](https://codepen.io/Jainee0110/pen/yLmeBmG) |
| 02 | voke | [CodePen](https://codepen.io/FiSi-the-lessful/pen/JjgGxoa) |
| 03 | 泊岸 | [CodePen](https://codepen.io/qoq77416416/pen/rNXxbPz?editors=0010) |
| 04 | ABOOS | [CodePen](https://codepen.io/guhungyin/pen/gOVrbPd?editors=0012) |
| 05 | Celine | [CodePen](https://codepen.io/szuning/pen/VwoaYmQ) |
| 06 | Toung | [CodePen](https://codepen.io/Toung/pen/wvVGBJZ)|
| 07 | 鬧鬧 | [CodePen](https://codepen.io/Abi-L/pen/abeNzJW?editors=0011) |
| 08 | Ellie | [CodePen](https://codepen.io/Ellie-Chiang/pen/oNKbyYO) |
| 09 | yuyeh_1212 | [CodePen](https://codepen.io/yuyeh1212/pen/LYwNEOQ) |
| 10 | Tatsu | [CodePen](https://codepen.io/chindesu0207/pen/dyxMPeK) |
| 11 | tim | [CodePen](https://codepen.io/jskrtivy-the-animator/pen/wvVGBmV?editors=0010) |
| 12 | 歐荻 | [CodePen](https://codepen.io/Odi-Mode/pen/qBeZEey) |
| 13 | Ruby | [CodePen](https://codepen.io/xivgaijl-the-selector/pen/ZEgWGbX)
| 14 | Lotte | [CodePen](https://codepen.io/hmkdoxuj-the-decoder/pen/QWeNbwK?editors=0010)
| 15 | jimmy.0706 | [CodePen](https://codepen.io/JimmyMao/pen/yLmONeX?editors=0011) |
| 16 | brucelee0629 | [CodePen](https://codepen.io/xxhdklwi-the-decoder/pen/PoMNqwo?editors=0011) |
| 17| 邵 |[Codepen](https://codepen.io/ukscrlno-the-typescripter/pen/GRVZJZK?editors=0010)|
| 18| yuling |[Codepen](https://codepen.io/yu-ling-peng/pen/wvVGaqz?editors=0011)|
| 19 | 毛巾 |[Codepen](https://codepen.io/bqdcjboa-the-solid/pen/zYgqGdL)|
| 20 | Kaya |[Codepen](https://codepen.io/kayaribi/pen/PoMNqJZ)|
| 21 | Ana | [Codepen](https://codepen.io/Ana-Wu/pen/GRVZJQp?editors=0010)|
| 22 | 倫倫 | [Codepen](https://codepen.io/f5badapple/pen/oNKxjgX?editors=0010)|
| 23 | zobody | [Codepen](https://codepen.io/Zoe-Shih/pen/BaXKoLm)|
| 24 | chris | [Codepen](https://codepen.io/chris-chen-the-selector/pen/ZEgWbXZ?editors=0010)|
| 25 | xcx100 | [Codepen](https://codepen.io/c13026/pen/MWNyaBd?editors=0012)|
| 26 | Ariel | [Codepen](https://codepen.io/ariel0510/pen/ExqKPag?editors=0011)|
| 27 | KOMATSU PEI | [Codepen](https://codepen.io/Komatsu2021/pen/eYqZpqN)|
| 28 | Sonia | [Codepen](https://codepen.io/YUJOU/pen/ZEgWQOb?editors=1011)|
| 29 | Mos | [Codepen](https://codepen.io/mos25399/pen/NWQNxZG)|
| 30 | 嚼勁先生 | [Codepen](https://codepen.io/James520284/pen/OJKNMYL)|
| 31 | Hedwig | [Codepen](https://codepen.io/adirehfz-the-encoder/pen/OJKNNLJ?editors=0011)|
| 32 | 610 | [Codepen]([作業網址放這邊](https://codepen.io/YI-LING-LIU/pen/BaXKjXa)) |
|33|朋仔|[CodePen](https://codepen.io/YPHUANG/pen/ExqKKjE?editors=0010)
| 34 | JIA | [Codepen](https://codepen.io/nzaicwlw-the-styleful/pen/poMyyge?editors=0010) |
|35|陳睿睿|[CodePen](https://codepen.io/uwmrsusb-the-solid/pen/ExqKyjz?editors=1111)|
| 36 | mercury2508. | [Codepen](https://codepen.io/Mercury2508/pen/vYoGKxy) |
|37|GAVI| [Codepen](https://codepen.io/qbafldcv-the-scripter/pen/KKOzMRb) |
|38|ycl325.etheddie| [Codepen](https://codepen.io/wdvikfuz-the-selector/pen/vYoGKMe) |
|39|.tsz_ying| [Codepen](https://codepen.io/bekgnohe-the-selector/pen/xxvVOeO?editors=1010) |
| 40 | CrystalLala | [Codepen]([作業網址放這邊](https://codepen.io/crystallala/pen/rNXeLqN)) |
| 41 |a1phaki(小k)| [Codepen](https://codepen.io/a1phaki/pen/wvVGMWN) |
| 42 |leoli35| [Codepen](https://codepen.io/ziku10121/pen/poMyEPv?editors=1111) |
| 43 |kaka_945| [Codepen](https://codepen.io/kay945/pen/OJKNRdK) |
| 44 | GTR150 | [Codepen](https://codepen.io/Wer-Qwe/pen/xxvVRpQ) |
| 45 | 黛西 | [Codepen](https://codepen.io/ChiashengLin/pen/RwXaoeP?editors=0010) |
| 46 | JRz | [Codepen](https://codepen.io/JRZHENG/pen/WNVwomZ?editors=0010) |
|47|Hailey|[Codepen](https://codepen.io/sxbokfja-the-flexboxer/pen/MWNyJYq?editors=0011)|
| 48 | ab567ab5 | [Codepen](https://codepen.io/WanTzu-Chiang/pen/zYgqZaw?editors=0011) |
| 49 | 是在哈囉 | [Codepen](https://codepen.io/miyxdhem-the-solid/pen/abeNWZK) |
| 50 | alec1203 | [Codepen](https://codepen.io/soloayaya/pen/zYgqwPL) |
| 51 | cbs9007 |[CodePen](https://codepen.io/wasdjk/pen/PoMNjoW)|
| 52 | 雪粒 | [Codepen](https://codepen.io/bzykdfhw-the-bashful/pen/GRVZvQw) |
| 53 | Emma | [Codepen](https://codepen.io/Emma0919/pen/ZEgWvqB) |
| 54 | Dolce_墨 | [Codepen](https://codepen.io/DolceTseng1026/pen/gOVreEv) |
| 55 | 湘湘 | [Codepen](https://codepen.io/siangsiang/pen/dyxMepV) |
| 56 | Satar | [Codepen](https://codepen.io/SatarKuo/pen/RwXaypy?editors=0010) |
| 57 | ABow_Chen | [Codepen](https://codepen.io/fred39392001/pen/wvVGjPZ) |
| 58 | Mars | [Codepen](https://codepen.io/MarsKuo/pen/JjgXZrm) |
| 59 | jerry_66983 | [Codepen](https://codepen.io/Barry-C/pen/abeNjLo) |
| 60 | Jack | [Codepen](https://codepen.io/kxbhixte-the-sasster/pen/yLmOGPN?editors=0010) |
| 61 | anderson666 | [Codepen](https://codepen.io/goodmanbuild/pen/gOVrERW) |
| 62 | Ed Huang | [Codepen](https://codepen.io/yide1986/pen/bGXpXaJ) |
| 63 | joylu0902 | [Codepen](https://codepen.io/joylu0902/pen/XWvdvgd) |
| 64 | zen | [Codepen](https://codepen.io/zen742937/pen/abeZdEp) |
| 65 | 野鴿 | [Codepen](https://codepen.io/HoshinoSyouta/pen/BaXzjME?editors=0010) |
| 66 | charlottelee | [Codepen](https://codepen.io/char849/pen/yLmJOVg) |
| 67 | yu | [Codepen](https://codepen.io/yu_ch12/pen/NWQrRJQ) |
| 68 | david1819 | [Codepen](https://codepen.io/David-Lin-the-vuer/pen/abeZpLg) |
| 69 | Seris | [Codepen](https://codepen.io/Dale-Chien/pen/bGXeoQe) |
| 70 | Lianne | [Codepen](https://codepen.io/Elaina-L/pen/GRVqdmx) |
| 71 | Shiloh | [Codepen](https://codepen.io/vhswacvv-the-sasster/pen/JjgRjRz) |
| 72 | Martin | [Codepen](https://codepen.io/wyipzpnh-the-decoder/pen/qBeaEOb?editors=0010) |
| 73 | Mike | [Codepen](https://codepen.io/mike2049/pen/poMERmO?editors=0010) |
|74|蘑菇星星|[Codepen](https://codepen.io/brrrieon-the-vuer/pen/vYoXZRN?editors=1111)
| 75 | Glen_69515|[codePen](https://codepen.io/glenyaochih/pen/JjgRvWG)
| 76 | jing6408 | [CodePen](https://codepen.io/qqjuyjat-the-builder/pen/qBeazWM) |
| 77 | 陳小廷 | [CodePen](https://codepen.io/ting1124/pen/bGXwXrM) |
| 78 | KUN. | [Codepen](https://codepen.io/barry91205/pen/GRVNKYL) |
| 79 | haojing | [Codepen](https://codepen.io/hjxu/pen/XWvNdvz) |
| 80 | Joannehu | [Codepen](https://codepen.io/nelbabkv-the-flexboxer/pen/abepLKp) |
| 81 | Kasie | [Codepen](https://codepen.io/KasieL/pen/KKOaZLr?editors=0010) |
| 82 | 黛Dye | [Codepen](https://codepen.io/Dye_Note/pen/GRVrPKJ?) |
| 83 | yoishere | [Codepen](https://codepen.io/yoishere/pen/RwXpMqO) |
| 83 | xiang5141 | [Codepen](https://codepen.io/XIANG-XIANG/pen/dyxWGex?editors=0010) |
|84|Avis|[CodePen](https://codepen.io/avisstian/pen/gOVWdRO)
|85|Ollie|[Codepen](https://codepen.io/daiyy97/pen/oNKwBzW?editors=0010)|
|86|Jim|[Codepen](https://codepen.io/JimChou/pen/vYoJEZv?editors=0011)|
|87|yaoling.liang|[Codepen](https://codepen.io/Yao-Ling-L-/pen/WNVZgQm)|
|88|Kim|[Codepen](https://codepen.io/kim0101__/pen/abeLamB?editors=1111)|
|89|iamcan|[Codepen](https://codepen.io/uhnxswdq-the-typescripter/pen/bGXKGNZ)|
|90|Charis_Lai|[Codepen](https://codepen.io/charislai/pen/ZEgjBjP?editors=0011) |
|91|地瓜|[Codepen](https://codepen.io/huangtzuchin/pen/dyxjWWo) |
|92|Amy(咂摳)|[Codepen](https://codepen.io/nnxucgmc-the-builder/pen/JjgaNeP?editors=0011) |
|93|Nocab Wang ( 培根 )|[Codepen](https://codepen.io/PeihanWang/pen/OJKaLdX?editors=0011) |
|94|Angela_la|[Codepen](https://codepen.io/Angela-the-builder/pen/dyxLRQw?editors=1011) |
|95|Vivian|[Codepen](https://codepen.io/vivian-hsiao/pen/BaXXdjE) |
|96|ji3di|[Codepen](https://codepen.io/jwuuhtxh-the-builder/pen/VYZLpbK?editors=0010)
|97|Anna|[Codepen](https://codepen.io/Anna-Teng/pen/raByQBJ?editors=0010)
|98|Chuang|[Codepen](https://codepen.io/uidoytjq-the-solid/pen/vEBJYvq?editors=0010)

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