回答編集履歴
3
タイポミス
answer
CHANGED
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@@ -45,10 +45,9 @@
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45
45
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}
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46
46
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</style>
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47
47
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<body>
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48
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-
<div
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48
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+
<div id="D"></div>
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49
49
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<script>
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50
50
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51
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-
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52
51
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const
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53
52
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N = 25,
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54
53
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NIGO = [...Array(N).keys(), ...Array(N).keys()],
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@@ -76,15 +75,12 @@
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76
75
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if (p.dataset.num == e.dataset.num) {
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77
76
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p.remove ();
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78
77
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e.remove ();
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79
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-
p = null;
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80
78
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}
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81
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-
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79
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+
p = null;
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82
80
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}
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83
81
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84
82
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D.addEventListener('click', handler, false);
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85
83
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86
84
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87
85
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</script>
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88
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-
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89
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-
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90
86
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```
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2
基本的なコードかな？短いので理解しやすいでしょう！
answer
CHANGED
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@@ -26,4 +26,65 @@
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26
26
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27
27
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28
28
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</script>
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29
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+
```
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30
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+
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31
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+
骨格としてはこんな感じ。実験用として数字をあえて表示しています。
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32
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+
同じ数字を２つクリックするとそれらが消えていきます。
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33
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+
まずは流れを理解するところから。
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34
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+
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35
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+
```js
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36
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+
<!DOCTYPE html><html>
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37
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+
<head><meta charset="UTF-8">
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38
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<style>
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39
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#D div {
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40
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display: inline-block;
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41
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+
border: 1px green solid;
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42
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+
width: 30px;
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43
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+
height: 30px;
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44
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+
text-align: center;
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45
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+
}
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46
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+
</style>
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47
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+
<body>
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48
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+
<div class="card_zone" id="D"></div>
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49
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+
<script>
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50
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+
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51
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+
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52
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+
const
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53
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N = 25,
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54
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+
NIGO = [...Array(N).keys(), ...Array(N).keys()],
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55
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LEN = NIGO.length,
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56
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+
R = n=> Math.random () * n|0;
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57
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+
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58
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+
[...D.children].forEach (e=> e.remove ());
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59
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+
let template = document.createElement ('div');
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60
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+
template.classList.add ('card');
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61
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+
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62
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+
for (let n of NIGO) {
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63
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+
let d = D.appendChild (template.cloneNode (true));
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64
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+
d.dataset.num = n;
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65
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+
d.textContent = n;//これは必要ない
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66
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+
}
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67
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+
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68
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+
for (let i = LEN; i; i--)
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69
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+
D.appendChild (D.children[R(i)]);
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70
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+
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71
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+
let p;
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72
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+
function handler (event) {
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73
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+
let e = event.target;
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74
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+
if (! p) return p = e;
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75
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+
if (p == e) return;
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76
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+
if (p.dataset.num == e.dataset.num) {
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77
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+
p.remove ();
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78
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+
e.remove ();
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79
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+
p = null;
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80
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+
}
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81
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+
else p = n = null;
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82
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+
}
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83
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+
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84
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+
D.addEventListener('click', handler, false);
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85
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+
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86
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+
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87
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+
</script>
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88
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+
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89
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+
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29
90
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```
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1
カッコつけた
answer
CHANGED
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@@ -20,7 +20,7 @@
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20
20
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let e = event.target, i = cards.indexOf (e);
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21
21
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if (-1 < i)
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22
22
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if (! A.has (e))
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23
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-
(e.textContent = wariate[i], A.add (e));
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23
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+
((e.textContent = wariate[i]), A.add (e));
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24
24
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}
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25
25
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document.addEventListener ('click', handler, false);
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26
26
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