如何使用JavaScript将秒转换为HH-MM-SS字符串?
当前回答
在一行中,使用T.J.克劳德的解决方案:
secToHHMMSS = seconds => `${Math.floor(seconds / 3600)}:${Math.floor((seconds % 3600) / 60)}:${Math.floor((seconds % 3600) % 60)}`
在一行中,另一个计算天数的解决方案:
secToDHHMMSS = seconds => `${parseInt(seconds / 86400)}d ${new Date(seconds * 1000).toISOString().substr(11, 8)}`
来源:https://gist.github.com/martinbean/2bf88c446be8048814cf02b2641ba276
其他回答
你也可以使用下面的代码:
int ss = nDur%60;
nDur = nDur/60;
int mm = nDur%60;
int hh = nDur/60;
这是一个非常简单的任务,但你们中的一些人直接推荐了Moment.js,或者创建了一些最丑陋的函数来解析一些秒…
transform(time: number): string {
if (time != null) {
const hours: number = Math.floor(time / 3600);
const minutes: number = Math.floor((time - (hours * 3600)) / 60);
const seconds: number = time - (hours * 3600) - (minutes * 60);
return [hours, (minutes < 10) ? '0' + minutes : minutes, (seconds < 10) ? '0' + seconds : seconds].join(':');
} else {
return '00:00:00';
}
}
这在任何情况下都适用……
这招很管用:
function secondstotime(secs)
{
var t = new Date(1970,0,1);
t.setSeconds(secs);
var s = t.toTimeString().substr(0,8);
if(secs > 86399)
s = Math.floor((t - Date.parse("1/1/70")) / 3600000) + s.substr(2);
return s;
}
(来源此处)
我知道这有点老了,但是…
ES2015:
var toHHMMSS = (secs) => {
var sec_num = parseInt(secs, 10)
var hours = Math.floor(sec_num / 3600)
var minutes = Math.floor(sec_num / 60) % 60
var seconds = sec_num % 60
return [hours,minutes,seconds]
.map(v => v < 10 ? "0" + v : v)
.filter((v,i) => v !== "00" || i > 0)
.join(":")
}
它将输出:
toHHMMSS(129600) // 36:00:00
toHHMMSS(13545) // 03:45:45
toHHMMSS(180) // 03:00
toHHMMSS(18) // 00:18
var timeInSec = "661"; //even it can be string
String.prototype.toHHMMSS = function () {
/* extend the String by using prototypical inheritance */
var seconds = parseInt(this, 10); // don't forget the second param
var hours = Math.floor(seconds / 3600);
var minutes = Math.floor((seconds - (hours * 3600)) / 60);
seconds = seconds - (hours * 3600) - (minutes * 60);
if (hours < 10) {hours = "0"+hours;}
if (minutes < 10) {minutes = "0"+minutes;}
if (seconds < 10) {seconds = "0"+seconds;}
var time = hours+':'+minutes+':'+seconds;
return time;
}
alert("5678".toHHMMSS()); // "01:34:38"
console.log(timeInSec.toHHMMSS()); //"00:11:01"
我们可以把这个函数写得更短更清晰,但这会降低可读性,所以我们要把它写得尽可能简单,尽可能稳定。
或者你可以在这里检查一下: