我試圖獲得兩次輸入之間的差異並將其顯示爲HH:mm:ss。在javascript中計算兩次輸入的差值(以秒爲單位)
爲顯示器創建了一個輸入框id="diff"
。此代碼適用於長達24小時的差異,這是我所需要的。
但是,當開始或結束時間的秒數輸入爲0(例如11:10:00 PM)時,顯示屏會反映出NaN。
任何人都知道問題在這裏?
var start = document.getElementById("start").value;
var end = document.getElementById("end").value;
function diff(start, end) {
start = start.split(":");
end = end.split(":");
var startDate = new Date(0, 0, 0, start[0], start[1], start[2], 0);
var endDate = new Date(0, 0, 0, end[0], end[1], end[2], 0);
//for calculation to work if endtime cross over next day. Eg. 11pm to 2am
if (endDate.getTime() < startDate.getTime()) {
endDate.setDate(endDate.getDate() + 1);
}
var diff = endDate.getTime() - startDate.getTime();
var hours = Math.floor(diff/1000/60/60);
diff -= hours * 1000 * 60 * 60;
var minutes = Math.floor(diff/1000/60);
diff -= minutes * 1000 * 60;
var seconds = Math.floor(diff/1000);
return (hours < 9 ? "0" : "") + hours + ":" + (minutes < 9 ? "0" : "") + minutes + ":" + (seconds < 9 ? "0" : "") + seconds;
}
document.getElementById("diff").value = diff(start, end);
<input type="time" id="start" step="1" value="">
<input type="time" id="end" step="1" value="">
<input id="diff">
會不會更容易,如果你只是解析這兩個DATAS到UNIX時間,減去它並再次更改爲日期對象? –