回答編集履歴
2
ソース修正
answer
CHANGED
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@@ -26,4 +26,34 @@
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26
26
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<button onClick={() => handleDelete(index)}>削除</button>
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27
27
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</td>
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28
28
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</tr>
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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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+
または、idを使ってstatusをトグルする要素を指定してもええ。修正箇所は、上に同じ２箇所や。
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32
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+
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33
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+
```diff
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34
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+
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35
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+
setTodos(newTodos.map((e, i) => ({ ...e, id: i + 1 })));
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36
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+
};
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37
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+
- const toggle = () => {
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38
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+
- setComment((prevState) => !prevState);
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39
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+
+ const toggle = (todoId) => {
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40
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+
+ setTodos(todos.map((todo, i) =>
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41
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+
+ todoId === todo.id ? {
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42
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+
+ ...todo,
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43
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+
+ status: todo.status === 'incomplete' ? 'completed' : 'incomplete', // completed は「完了」を表す
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44
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+
+ } : todo));
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45
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+
};
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46
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+
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47
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+
return (
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48
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+
```
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49
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+
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50
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+
```diff
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51
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+
<td>{todo.id}</td>
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52
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+
<td>{todo.comment}</td>
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53
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+
<td>
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54
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+
- <button onClick={toggle}>{comment ? "作業中" : "完了"}</button>
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55
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+
+ <button onClick={() => toggle(todo.id)}>{todo.status === 'incomplete' ? "作業中" : "完了"}</button>
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56
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+
<button onClick={() => handleDelete(index)}>削除</button>
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57
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+
</td>
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58
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+
</tr>
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29
59
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```
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1
ソース修正
answer
CHANGED
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@@ -1,6 +1,9 @@
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1
1
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修正するとこ、２箇所あってん。こないにしてみたって。
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2
2
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3
3
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```diff
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4
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+
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5
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+
setTodos(newTodos.map((e, i) => ({ ...e, id: i + 1 })));
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6
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+
};
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4
7
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- const toggle = () => {
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5
8
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- setComment((prevState) => !prevState);
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6
9
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+ const toggle = (index) => {
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@@ -9,9 +12,18 @@
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9
12
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+ ...todo,
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10
13
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+ status: todo.status === 'incomplete' ? 'completed' : 'incomplete', // completed は「完了」を表す
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11
14
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+ } : todo));
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15
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+
};
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16
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+
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17
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+
return (
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12
18
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```
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13
19
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14
20
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```diff
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21
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+
<td>{todo.id}</td>
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22
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+
<td>{todo.comment}</td>
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23
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+
<td>
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15
24
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- <button onClick={toggle}>{comment ? "作業中" : "完了"}</button>
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16
25
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+ <button onClick={() => toggle(index)}>{todo.status === 'incomplete' ? "作業中" : "完了"}</button>
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26
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+
<button onClick={() => handleDelete(index)}>削除</button>
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27
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+
</td>
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28
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+
</tr>
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17
29
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```
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