回答編集履歴
1
delegateメソッドの使い方を修正
answer
CHANGED
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@@ -3,7 +3,7 @@
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3
3
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$(function() {
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4
4
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var checkbox_selector = "input[type=checkbox]";
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5
5
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6
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-
$("body").delegate(checkbox_selector
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6
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+
$("body").delegate(checkbox_selector, "click", function() {
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7
7
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var length, checked_length;
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8
8
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9
9
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length = $(checkbox_selector).length;
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