时间转化

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本文链接： https://blog.csdn.net/weixin_40578880/article/details/102758547

一、秒数 => 00:00:00

function formatTime(time) {
  if (typeof time !== 'number' || time < 0) {
    return time
  }

  var hour = parseInt(time / 3600)
  time = time % 3600
  var minute = parseInt(time / 60)
  time = time % 60
  var second = time

  return ([hour, minute, second]).map(function (n) {
    n = n.toString()
    return n[1] ? n : '0' + n
  }).join(':')
}

二、时间戳 => 2019/10/21 00:00:00

function formatTime(date) {
  var year = date.getFullYear()
  var month = date.getMonth() + 1
  var day = date.getDate()

  var hour = date.getHours()
  var minute = date.getMinutes()
  var second = date.getSeconds()

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

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