片刻js从十进制nr中获取hh:mm:ss

Question

从值126.55 (126分钟，55秒）我怎么能得到一个输出像02:06:55

var d = moment.duration(126.55,'minutes');
var hours = Math.floor(d.asHours());
var mins = Math.floor(d.asMinutes()) - hours * 60;
var secs = Math.floor(d.asSeconds()) - mins * 60;
console.log(hours + ":" + mins + ":" + secs);

我的输出是2:6:7233

期望输出02:06:55

Answer 1

试试这个：

js lang-js prettyprint-override">var value = 126.55;

var minutes = Math.floor(value),
    seconds = (value - minutes) * 100;

var duration = moment.duration(minutes, 'minutes').add(seconds, 'seconds');

alert(moment.utc(duration.asMilliseconds()).format("HH:mm:ss"));

<script src="http://momentjs.com/downloads/moment.js"></script>

Answer 2

我建议使用矩-持续时间-格式插件，但在此之前，秒数必须从秒转换为十进制（即：55秒是91百分之一秒）：

window.onload = function() {
  var min = 6.55;
  min =  parseInt(min)+ (min * 100 % 100) / 60;
  var result = moment.duration(min ,'minutes').format("HH:mm:ss", {trim: false});
  document.getElementById('log').textContent = result;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.13.0/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment-duration-format/1.3.0/moment-duration-format.min.js"></script>

<p id="log"></p>