回答編集履歴
1
セレクトボックスのJavaScriptによる動的変更を追加。HTMLの出力結果を削除。
test
CHANGED
@@ -148,7 +148,75 @@
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</s:iterator>
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};
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var changeYear = function() {
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// yearsセレクトボックスで選んだ値を取得
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var selectedValue = document.getElementById("years").value;
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// 月別セレクトボックスに表示する月一覧を抽出
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var months = yearMonth[selectedValue];
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// 月のセレクトボックスを洗い替え
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replaceMonths(months);
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};
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var replaceMonths = function(months) {
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// optionを全削除
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var monthsNode = document.getElementById("months")
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if ( monthsNode !== null ) {
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for ( i=monthsNode.childNodes.length;i>0;i--) {
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monthsNode.removeChild(monthsNode.childNodes[i-1]);
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}
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}
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}
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// option要素を再作成
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for ( i=0;i<months.length;i++ ) {
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var optionNode = document.createElement('option');
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optionNode.setAttribute('value',months[i]);
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var text = document.createTextNode(months[i]);
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optionNode.appendChild(text);
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monthsNode.appendChild(optionNode);
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}
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};
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window.onload = function() {
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changeYear();
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};
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</script>
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@@ -177,207 +245,3 @@
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```
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出力されるHTML
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```html
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<!DOCTYPE>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>Insert title here</title>
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<script>
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var yearMonth = {
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'2017': [
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'4' ,
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'5' ,
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'6' ,
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'7' ,
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'8' ,
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'9' ,
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'10' ,
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] ,
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'2016': [
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'1' ,
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'2' ,
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'3' ,
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'4' ,
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] ,
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'2015': [
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'9' ,
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'10' ,
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'11' ,
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'12' ,
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] ,
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}
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</script>
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</head>
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<body>
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'2017': [
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'4' ,
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'5' ,
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'6' ,
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'7' ,
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'8' ,
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'9' ,
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'10' ,
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] ,
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'2016': [
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'1' ,
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'2' ,
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'3' ,
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'4' ,
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] ,
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'2015': [
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'9' ,
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'10' ,
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'11' ,
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'12' ,
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] ,
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</body>
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</html>
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```
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