小程序如何把秒转成00:00的格式？

Question

比如15秒就变成00:15 88就变成01:28 有没有简单的办法？

Answer 1

function format(second) {
    let min = Math.floor(second / 60);
    let sec = second % 60;
    
    let str = "";
    if (min < 10) {
        str += "0" + min.toString();
    } else {
        str += min.toString();
    }
    
    str += ":";
    if (sec < 10) {
        str += "0" + sec.toString();
    } else {
        str += sec.toString();
    }
    
    return str;
}

console.log(format(88));