質問編集履歴
2
文法修正
test
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File without changes
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test
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@@ -5,51 +5,3 @@
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5
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例えば4月３１日だと表示させないようにしたいです。
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あと、うるう年も考慮して書きたいです。
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```javascript
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12
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13
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function showUserWeekDay() {
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var inputYear = document.getElementById("userYear").value;
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var inputMonth = document.getElementById("userMonth").value;
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var inputDate = document.getElementById("userDate").value;
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var WeekChars = [ "日曜日", "月曜日", "火曜日", "水曜日", "木曜日", "金曜日", "土曜日" ];
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var answer = document.getElementById("answer");
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var weekDate = new Date( inputYear, inputMonth - 1, inputDate );
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if(inputYear === "" || inputMonth === "" || inputDate === ""){
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answer.innerHTML = "";
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} else if(inputYear.replace(/^19[0-9]{2}$|^20[0-9]{2}$/,"x") !== "x"){
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answer.innerHTML = "";
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} else if(inputMonth.replace(/^[1-9]$|^1[0-2]$/,"x") !== "x"){
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answer.innerHTML = "";
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} else if(inputDate.replace(/^[1-9]$|^1[0-9]$|^2[0-9]$|^3[0-1]$/,"x") !== "x") {
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answer.innerHTML = "";
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}else{
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answer.innerHTML = ("結果：" + WeekChars[weekDate.getDay()] + "です。");
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}
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}
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```
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1
文法の修正
test
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@@ -1 +1 @@
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1
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JavaScript
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1
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JavaScript 月毎 日付 指定 検索
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test
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File without changes
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