时间戳转时间 数组去重

const formatTime = date => {

  const year = date.getFullYear()

  const month = date.getMonth() + 1

  const day = date.getDate()

  const hour = date.getHours()

  const minute = date.getMinutes()

  const second = date.getSeconds()

  return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')

}

const formatNumber = n => {

  n = n.toString()

  return n[1] ? n : '0' + n

}

/**

* 时间戳转化为年 月 日 时 分 秒

* number: 传入时间戳

* format：返回格式，支持自定义，但参数必须与formateArr里保持一致

*/

function formatTimeTwo(number, format) {

  var formateArr = ['Y', 'M', 'D', 'h', 'm', 's'];

  var returnArr = [];

  var date = new Date(number * 1000);

  returnArr.push(date.getFullYear());

  returnArr.push(formatNumber(date.getMonth() + 1));

  returnArr.push(formatNumber(date.getDate()));

  returnArr.push(formatNumber(date.getHours()));

  returnArr.push(formatNumber(date.getMinutes()));

  returnArr.push(formatNumber(date.getSeconds()));

  for (var i in returnArr) {

    format = format.replace(formateArr[i], returnArr[i]);

  }

  return format;

}

function unique(arr) {

  return Array.from(new Set(arr))

}

//根据对象去重

function unique1(arr1) {

  const res = new Map();

  return arr1.filter((a) => !res.has(a.codeName) && res.set(a.codeName, 1))

}

const formatTime1 = date => {

  const year = date.getFullYear()

  const month = date.getMonth() + 1

  const day = date.getDate()

  return [year, month, day].map(formatNumber).join('/')

}

module.exports = {

  formatTime: formatTime,

  formatTimeTwo: formatTimeTwo, // 时间戳转日期

  unique,//数组去重

  unique1,

  formatTime1

}