回答編集履歴
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変更
answer
CHANGED
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@@ -1,3 +1,49 @@
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```
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showResult(); // 初期全てを非表示にするため
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3
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4
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$(".test input[type=checkbox]").click(function () {
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showResult();
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});
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function showResult(){
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var $section = $('section');
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var $checked_a = $('[id^="a"]:checked');
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var $checked_b = $('[id^="b"]:checked');
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var _filter = function ($checked) {
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return function () {
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var $this = $(this);
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return Array.prototype.some.call($checked, function (checkbox) {
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return $this.hasClass(checkbox.getAttribute('id'));
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});
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}
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};
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// 一旦すべてのsectionを非表示にする
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$section.hide();
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// a、bの全てが未選択の場合、処理中断
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if (($checked_a.length === 0) && ($checked_b.length === 0)) {
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return;
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}
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// チェックボックスのid属性の値とsectionのクラス属性の値でフィルタリング
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if ($checked_a.length > 0) {
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$section = $section.filter(_filter($checked_a));
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}
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if ($checked_b.length > 0) {
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$section = $section.filter(_filter($checked_b));
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}
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$section.show();
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}
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```
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[https://jsfiddle.net/takmatz/psbz54ad/](https://jsfiddle.net/takmatz/psbz54ad/)
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---
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45
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修正前
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1
47
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``` javascript
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2
48
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showResult(); // 初期全てを非表示にするため
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3
49
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