js 时间戳转string

// 假设我们有一个时间戳
let timestamp = 1633072800000; // 这是2021年10月1日00:00:00 UTC的时间戳

// 创建一个Date对象
let date = new Date(timestamp);

// 使用Date对象的方法获取年、月、日等信息
let year = date.getFullYear();
let month = ('0' + (date.getMonth() + 1)).slice(-2); // 月份是从0开始的，所以需要+1
let day = ('0' + date.getDate()).slice(-2);
let hours = ('0' + date.getHours()).slice(-2);
let minutes = ('0' + date.getMinutes()).slice(-2);
let seconds = ('0' + date.getSeconds()).slice(-2);

// 拼接成字符串
let dateString = `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
console.log(dateString); // 输出格式如 "2021-10-01 00:00:00"

let timestamp = 1633072800000;
let date = new Date(timestamp);
let dateString = date.toLocaleString(); // 输出格式依赖于用户的本地设置，例如 "10/1/2021, 12:00:00 AM"
console.log(dateString);

// 首先需要引入Moment.js库
// <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>

let timestamp = 1633072800000;
let dateString = moment(timestamp).format('YYYY-MM-DD HH:mm:ss');
console.log(dateString); // 输出 "2021-10-01 00:00:00"