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| var dateElement = document.querySelector("#date"); | |
| var timeElement = document.querySelector("#time"); | |
| var registerButton = document.querySelector("#register"); | |
| registerButton.addEventListener("click", register); | |
| var dueDate = new Date(2016, 1, 20, 23, 59, 59); | |
| var remaining = document.querySelector("#remaining"); | |
| var dueDate2 = new Date(2016, 11, 31, 23, 59, 59); | |
| var remaining2 = document.querySelector("#remaining2"); | |
| function showRemainingTimeTo(now, due, element){ | |
| var remainingTime = Math.floor((due - now) / 1000); | |
| var sec = remainingTime % 60; | |
| remainingTime = (remainingTime - sec) / 60; | |
| var min = remainingTime % 60; | |
| remainingTime = (remainingTime - min) / 60; | |
| var hour = remainingTime % 24; | |
| var day = (remainingTime - hour) / 24; | |
| var text = day + "日" + hour + "時間" + | |
| min + "分" + sec + "秒"; | |
| element.textContent = text; | |
| } | |
| function update(){ | |
| var now = new Date(); | |
| showRemainingTimeTo(now, dueDate, remaining); | |
| showRemainingTimeTo(now, dueDate2, remaining2); | |
| } | |
| setInterval(update, 1000); | |
| function register(){ | |
| var date = dateElement.value; | |
| var time = timeElement.value; | |
| var dateTimeString = date + " " + time; | |
| console.log(dateTimeString); | |
| var dateTime = new Date(dateTimeString); | |
| console.log(dateTime); | |
| console.log(dateTime.getYear() + 1900); | |
| dueDate = dateTime; | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>日付</title> | |
| <meta charset="utf-8"> | |
| </head> | |
| <body> | |
| <input type="date" id="date"> | |
| <input type="time" id="time"> | |
| <button id="register">登録</button> | |
| <p> | |
| 2016 年 2 月 20 日 23:59:59 まで、あと | |
| <span id="remaining"></span> | |
| </p> | |
| <p> | |
| 2016 年 12 月 31 日 23:59:59 まで、あと | |
| <span id="remaining2"></span> | |
| </p> | |
| <script src="app.js"></script> | |
| </body> | |
| </html> |
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