js 把时间戳转成日期格式

function timestampToDate(timestamp) {
  // 创建一个新的Date对象
  const date = new Date(timestamp);

  // 获取年、月、日、时、分、秒
  const year = date.getFullYear();
  const month = String(date.getMonth() + 1).padStart(2, '0'); // 月份从0开始，需要加1
  const day = String(date.getDate()).padStart(2, '0');
  const hours = String(date.getHours()).padStart(2, '0');
  const minutes = String(date.getMinutes()).padStart(2, '0');
  const seconds = String(date.getSeconds()).padStart(2, '0');

  // 格式化日期字符串
  const formattedDate = `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
  return formattedDate;
}

// 示例时间戳（毫秒）
const timestamp = 1633024800000;
console.log(timestampToDate(timestamp)); // 输出: 2021-10-01 00:00:00

const date = new Date(timestamp);
const localDate = date.toLocaleString();
console.log(localDate); // 输出本地时间的字符串表示

// 使用moment.js
const moment = require('moment');
const formattedDate = moment(timestamp).format('YYYY-MM-DD HH:mm:ss');
console.log(formattedDate);

// 使用date-fns
const { format } = require('date-fns');
const formattedDate = format(new Date(timestamp), 'yyyy-MM-dd HH:mm:ss');
console.log(formattedDate);