格式化时间Javascript

function formatTime(time)
{
    let min = parseInt(time / 60);
    let sec = parseInt(time % 60);
    min < 10 ? "0" + min: min;
    sec < 10 ? "0" + sec: sec;
    return `${min}:${sec}`;
}

padstart字符串方法

return `${min.toString().padStart(2, '0')}:${sec.toString().padStart(2, '0')}`