vue高德地图异步加载

/**map.js*/
//引入地图
export function MapLoader() {
  const mp = new Promise(function (resolve, reject) {
    if (window.AMap) {
      resolve(window.AMap)
    } else {
      var url = 'https://webapi.amap.com/maps?v=1.4.15&key=youkey&callback=onLoad&plugin=AMap.DistrictSearch'
      var script = document.createElement('script')
      script.src = url
      script.id = "amap";
      script.onerror = reject
      document.head.appendChild(script)
    }
    window.onLoad = () => {
      resolve(window.AMap)
    }
  });
  //引入地图UI库
  const mpUI = new Promise(function (resolve, reject) {
    if (window.AMapUI) {
      resolve(window.AMapUI)
    } else {
      var url = 'https://webapi.amap.com/ui/1.0/main.js'
      var script = document.createElement('script')
      script.src = url
      script.id = 'amapUI';
      script.onerror = reject
      document.head.appendChild(script)
    }
    window.onLoad = () => {
      resolve(window.AMapUI)
    }
  });
  return Promise.all([mp, mpUI])
    .then(function (result) {
      return result
    }).catch(e => {
      console.log(e);
    })
}
/**使用map.js*/
import { MapLoader } from './js/map'
MapLoader().then(res => {
      console.log('%地图异步加载成功%')
      this.AMap = res[0]
      this.AMapUI = res[1]
  }