获取类似朋友圈的时间显示算法

function getDateDiff(date) {
var publishTime = date / 1000,
    d_seconds,
    d_minutes,
    d_hours,
    d_days,
    timeNow = parseInt(new Date().getTime() / 1000),
    d,

    date = new Date(publishTime * 1000),
    Y = date.getFullYear(),   //获取当前年份
    M = date.getMonth() + 1,  //获取当前月份
    D = date.getDate(),  //获取当前天数
    H = date.getHours(),  //获取当前小时
    m = date.getMinutes(),  //获取当前分钟
    s = date.getSeconds();  //获取当前秒
    //小于10的在前面补0
    if (M < 10) {
        M = '0' + M;
    }
    if (D < 10) {
        D = '0' + D;
    }
    if (H < 10) {
        H = '0' + H;
    }
    if (m < 10) {
        m = '0' + m;
    }
    if (s < 10) {
        s = '0' + s;
    }

    d = timeNow - publishTime;   //计算时间差
    d_days = parseInt(d / 86400);   //计算差几天
    d_hours = parseInt(d / 3600);  //计算差几个小时
    d_minutes = parseInt(d / 60);  //计算差多少分钟
    d_seconds = parseInt(d);   //计算差多少秒

    if (d_days > 0 && d_days < 3) {   //3天之内
        return d_days + '天前';
    } else if (d_days <= 0 && d_hours > 0) {  //1天之内显示小时
        return d_hours + '小时前';
    } else if (d_hours <= 0 && d_minutes > 0) { //1小时之内显示分钟
        return d_minutes + '分钟前';
    } else if (d_seconds < 60) {   //1分钟内   显示秒
        if (d_seconds <= 0) {
            return '刚刚';
        } else {
            return d_seconds + '秒前';
        }
    } else if (d_days >= 3 && d_days < 30) {  //30天之内不显示年份
        return M + '-' + D + ' ' + H + ':' + m;
    } else if (d_days >= 30) {   //大于30天显示年份
        return Y + '-' + M + '-' + D + ' ' + H + ':' + m;
    }
}

使用时只需要将记录的时间传进去就ok

console.log(getDateDiff(new Date().getTime()-1000));
==>刚刚

console.log(getDateDiff(new Date().getTime()-10000));
==>9秒前

console.log(getDateDiff(new Date().getTime()-100000));
==>1分钟前

console.log(getDateDiff(new Date().getTime()-10000000));
==>2小时前

console.log(getDateDiff(new Date().getTime()-100000000));
==>1天前

console.log(getDateDiff(new Date().getTime()-1000000000));
==>05-16 03:22

console.log(getDateDiff(new Date().getTime()-10000000000));
==>2019-01-31 23:22