十三位时间戳换成日期格式xxxx-mm-dd

function getLocalTime(nS) {
//将时间戳（十三位时间搓，也就是带毫秒的时间搓）转换成时间格式
// d.cTime = 1539083829787
let date = new Date(nS);
let year = date.getFullYear();
let month = date.getMonth()+1;
let day = date.getDate();
month = month < 10 ? "0"+month:month;
day = day < 10 ? "0"+day:day;
date = year+'-'+month+'-'+day;
console.log(date); // 2018-10-09
return date;
}

转载至：https://blog.csdn.net/jianqiangdexiaohai/article/details/84561461