首页广告，只弹出一次（包含复制广告上的内容到剪切板）

只弹出一次，使用cookie记录。复制内容到剪切板，使用原生js。

const activityModal = $('#modal-1024-activity')
const couponSuccessModal = $('#modal-1024-result-success')
const couponFailModal = $('#modal-1024-result-fail')
const couponBtn = activityModal.find('.coupon-btn-click')
const copyBtn = couponSuccessModal.find('.copy')
const copyInput = couponSuccessModal.find('.code')
const token = '9sPRorq5'

if (getCookie('1024-activity') && activityModal.length) {
  activityModal.modal('show')
  document.cookie = '1024-activity=true'
}

couponBtn.on('click', () => {
  $.ajax({
    type: 'POST',
    url: '/purchase/promotions/receive_coupon/',
    data: {
      token,
    },
    success: (res) => {
      couponSuccessModal.modal('show')
      copyInput.val(res.coupon_num)
    },
    error: (res) => {
      couponFailModal.modal('show')
    },
  })
})

copyBtn.on('click', () => {
  copyInput.select()
  document.execCommand('Copy')
  window.location.href = '/vip'
})

function getCookie(name) {
  const reg = new RegExp(`(^| )${name}=([^;]*)(;|$)`)
  const arr = document.cookie.match(reg)
  if (arr) {
    return false
  }
  return true
}