回答編集履歴
1
追記
answer
CHANGED
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@@ -25,4 +25,37 @@
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25
25
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</script>
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26
26
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</body>
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27
27
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</html>
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28
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```
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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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+
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32
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コメントを受けて追記
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33
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+
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34
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```html
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35
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<!DOCTYPE HTML>
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36
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<html lang="ja-JP">
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37
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<head>
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38
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<meta charset="UTF-8">
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39
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<title></title>
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40
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</head>
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41
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<body>
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42
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43
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<form action="">
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44
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<input class="num" type="text" name="num[]" />
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45
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<input class="num" type="text" name="num[]" />
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46
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<input class="num" type="text" name="num[]" />
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47
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<input class="num" type="text" name="num[]" />
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48
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</form>
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49
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
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50
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<script type="text/javascript">
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51
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$(function () {
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52
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$(".num").on('change', function () {
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53
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var val = $(this).val();
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54
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var n = new Number(val);
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55
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$(this).val(n.toFixed(2));
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56
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});
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57
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});
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58
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</script>
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59
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</body>
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60
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</html>
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28
61
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```
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