回答編集履歴
2
saichouse
test
CHANGED
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@@ -26,3 +26,27 @@
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26
26
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<p class="cnt_area">メニュー文字数：<span class="now_cnt">0</span> / 25</p>
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27
27
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</div>
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28
28
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```
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29
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+
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30
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+
# 再調整
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31
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+
```javascript
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32
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+
<script>
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33
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+
document.addEventListener('input', e=>{
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34
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+
const t=e.target;
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35
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if(t.matches('.txt')){
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36
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+
t.parentNode.querySelector('.now_cnt').textContent=t.value.length;
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37
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}
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38
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});
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39
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+
</script>
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40
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+
<div>
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41
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+
<input class="txt" maxlength="25">
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42
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+
<div>メニュー文字数：<span class="now_cnt">0</span> / 25</div>
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43
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+
</div>
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44
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+
<div>
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45
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+
<input class="txt" maxlength="25">
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46
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+
<div>メニュー文字数：<span class="now_cnt">0</span> / 25</div>
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47
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+
</div>
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48
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+
<div>
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49
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+
<input class="txt" maxlength="25">
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50
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+
<div>メニュー文字数：<span class="now_cnt">0</span> / 25</div>
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51
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+
</div>
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52
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+
```
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1
調整
test
CHANGED
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@@ -9,3 +9,20 @@
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|
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9
9
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<input id="txt" maxlength="25">
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10
10
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<div></div>
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11
11
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```
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12
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+
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13
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+
# 調整
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14
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+
複数の入力欄の合計文字数を表示
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15
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+
```javascript
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16
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<script>
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17
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document.addEventListener('input',e=>{
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18
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const n=[...document.querySelectorAll(`[name="menu_name[]"]`)].reduce((x,y)=>x+y.value.length,0);
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19
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document.querySelector('.now_cnt').textContent=n;
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20
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});
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21
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+
</script>
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22
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+
<input name="menu_name[]"><br>
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23
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+
<input name="menu_name[]"><br>
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24
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+
<input name="menu_name[]"><br>
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25
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+
<div class="check-wrapp">
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26
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+
<p class="cnt_area">メニュー文字数：<span class="now_cnt">0</span> / 25</p>
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27
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+
</div>
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28
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+
```
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