关于判断时间是今天或者昨天

    function judgeTime(date){
        var today = new Date()
            today.setHours(0);
            today.setMinutes(0);
            today.setSeconds(0);
            today.setMilliseconds(0);
        var otime = today.getTime()
            //给出时间 - 今天0点
        var offset= date-otime
        var isToday = offset/1000/60/60
        if(isToday > 0 && isToday<= 24){
            return "今天"
        }else if(isToday < 0 && isToday <= -24){
            return "昨天"
        }else{
            return "其他"
        }
    }
　　//　参数测试时间，好像是昨天的，忘了
    var obj = judgeTime(1550564604000)
    console.log(obj)