JS时间转换

js时间处理

日期格式转换

const formatTime = (date,j='/',l='Ymd H:i:s') => {
  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()
  if(l == 'Ymd'){
    return [year, month, day].map(formatNumber).join(j)
  }else{
    return [year, month, day].map(formatNumber).join(j) + ' ' + [hour, minute, second].map(formatNumber).join(':')
  }
}

const formatNumber = n => {
  n = n.toString()
  return n[1] ? n : '0' + n
}

时间戳转日期

时间戳转日期

const nToDate = (timestamp,j = '/',l='Ymd') => {
  if(timestamp.length == 10){
    timestamp = timestamp*1000;
  }
  let date = new Date(timestamp);
  return formatTime(date,j,l)
}

时间戳转日期时间

const nToDateTime = (timestamp,j = '/') => {
  if(timestamp.length == 10){
    timestamp = timestamp*1000;//时间戳为10位需*1000，时间戳为13位的话不需乘1000
  }
  var date = new Date(timestamp);   
  return formatTime(date,j)
}