js实现格式总时长(如94350秒)为时分秒

1、啰嗦格式方式：秒转为时分秒（94350s  -> 26:12:30 ）

let ret = '00：00';
let total = 94350;
if (total < 60) return ret = '00:' + total;
let hour = 0;
let minute = 0;
let second = 0;
if (total > 60 && total < 3600) {minute = parseInt(total / 60);minute = minute < 10 ? '0' + minute : minute;second = parseInt(total % 60);second = second < 10 ? '0' + second : second;ret = minute + ':' + second;return ret;
}
hour = parseInt(total / 3600);
minute = parseInt((total - (hour * 3600)) / 60);
hour = hour < 10 ? '0' + hour : hour;
minute = minute < 10 ? '0' + minute : minute;
second = parseInt(total % 60);
second = second < 10 ? '0' + second : second;
ret = hour + ':' + minute + ':' + second;
return ret;

2、简化形式：秒转为时分秒（94350s  -> 26:12:30）

let ret = '00：00';
let total = 94350;	
var hours = Math.floor(total / 3600);
var minutes = Math.floor(((total % 86400) % 3600) / 60);
var seconds = Math.floor(((total % 86400) % 3600) % 60);
minutes = minutes < 10 ? '0' + minutes : minutes;
seconds = seconds < 10 ? '0' + seconds :  seconds;
if (hours > 0) {hours = hours < 10 ? '0' + hours : hours;ret = hours + ":" + minutes + ":" + seconds;
}
else ret = minutes + ":" + seconds;
return ret;

3、秒转为天时分秒（94350s  -> 1天  02:12:30）

let ret = '00：00';
let total = 94350;
var days = Math.floor(total / 86400);
var hours = Math.floor((total % 86400) / 3600);
var minutes = Math.floor(((total % 86400) % 3600) / 60);
var seconds = Math.floor(((total % 86400) % 3600) % 60);
if (hours > 0) hours = hours < 10 ? '0' + hours : hours;
minutes = minutes < 10 ? '0' + minutes : minutes;
seconds = seconds < 10 ? '0' + seconds :  seconds;
if (days > 0)return ret = days + '天' + ' ' + hours + ":" + minutes + ":" + seconds;
if (hours > 0)return ret = hours + ":" + minutes + ":" + seconds;
ret = minutes + ":" + seconds;
return ret;