JS 格式化时间,转成 几天前,几个月前

function  wl_changeTime(time) {
        var dateTimeStamp=new Date(time).getTime()
        

        var minute = 1000 * 60;
        var hour = minute * 60;
        var day = hour * 24;
        
        var month = day * 30;
        var year=month*12;
        var now = new Date().getTime();
        var diffValue = now - dateTimeStamp;
        var result=""
        if(diffValue < 0) {
            return;
        }
        

        var monthC = diffValue / month;
        var weekC = diffValue / (7 * day);
        var dayC = diffValue / day;
        var hourC = diffValue / hour;
        var minC = diffValue / minute;
        var yearC=diffValue / year
        if(yearC>=1){
            return  "" + parseInt(yearC) + "年前";
        }
        if(monthC >= 1) {
            result = "" + parseInt(monthC) + "月前";
        } else if(weekC >= 1) {
            result = "" + parseInt(weekC) + "周前";
        } else if(dayC >= 1) {
            result = "" + parseInt(dayC) + "天前";
        } else if(hourC >= 1) {
            result = "" + parseInt(hourC) + "小时前";
        } else if(minC >= 1) {
            result = "" + parseInt(minC) + "分钟前";
        } else{
            result = "刚刚";
        }
        
        return result;
}

  console.log(wl_changeTime("2014-12-19 13:56:33"))

 

 !!!