传单地图如何将选中的地图保存到本地存储

Question

我在地图上有 3 个图层，但是当我选择并刷新地图时，它总是显示 默认一种任何方式显示用户选择的地图，即使页面重新加载

var defaultMap = window.L.tileLayer(
  'https://stamen-tiles-{s}.a.ssl.fastly.net/terrain-background/{z}/{x}/{y}{r}.{ext}',
  {
    attribution: `Map tiles by <a href="http://stamen.com" target="_blank" class="attribution">Stamen Design<span class="warning bg-c-gray-800 c-border-dark">${this.opensInNewWindowLbl}</span></a>,
      <a href="http://creativecommons.org/licenses/by/3.0" target="_blank" class="attribution">CC BY 3.0<span class="warning bg-c-gray-800 c-border-dark">${this.opensInNewWindowLbl}</span></a> &mdash; Map data &copy;
      <a href="https://www.openstreetmap.org/copyright" target="_blank" class="attribution">OpenStreetMap<span class="warning bg-c-gray-800 c-border-dark">${this.opensInNewWindowLbl}</span></a> contributors`
  }
).addTo(this.map);

var stamen = L.tileLayer('https://stamen-tiles-{s}.a.ssl.fastly.net/toner-background/{z}/{x}/{y}{r}.{ext}', {
attribution: 'Map tiles by <a href="http://stamen.com">Stamen Design</a>, <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a> &mdash; Map data &copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
subdomains: 'abcd',
minZoom: 0,
maxZoom: 20,
ext: 'png'
});

var esri = L.tileLayer('https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}', {
attribution: 'Tiles &copy; Esri &mdash; Source: Esri, i-cubed, USDA, USGS, AEX, GeoEye, Getmapping, Aerogrid, IGN, IGP, UPR-EGP, and the GIS User Community'
});

//leaflet layer Control
var baseMaps = {
  'Open Street Maps': defaultMap,
  'High Contrast': stamen,
  'Setalite view': esri,
}

L.control.layers(baseMaps).addTo(this.map);