js数字转时间格式

//转时间格式

function TimeCycleFilter(sec){
    let hour = Math.floor(sec / 3600);
    let minute = Math.floor((sec - hour * 3600) / 60);
    let second = sec - hour * 3600 - minute * 60;
    if (hour < 10) {
        hour = "0" + hour;
    }
    if (minute < 10) {
        minute = "0" + minute;
    }
    if (second < 10) {
        second = "0" + second;
    }
    return hour + ":" + minute + ":" + second;
}