JavaScript返回格式化的时间字符串

function formatDate (timestamp) {
  let date = new Date(timestamp)
  let year = date.getFullYear()
  let month = date.getMonth() + 1 // 月份是从0开始的
  let day = date.getDate()
  let hour = date.getHours()
  let min = date.getMinutes()
  if (hour < 10) { hour = ‘0‘ + String(hour) }
if (min < 10) { min = ‘0‘ + String(min) } // let sec = date.getSeconds() 
  let newTime = year + ‘/‘ + month + ‘/‘ + day + ‘ ‘ + hour + ‘:‘ + min 
  return newTime }

export {formatDate}