title: I feel confused to determine the coordinates and display the tools to select the base map, can anyone help me?
body: <p>I am using the leafletJS plugin, and using jQuery. And I use the caller link</p>
  <pre><code>&lt;link rel=&quot;stylesheet&quot; href=&quot;leaflet/leaflet.css&quot; /&gt; 
  &lt;script src=&quot;leaflet/leaflet.js&quot;&gt;&lt;/script&gt;
  &lt;script src=&quot;js/jquery-3.1.0.min.js&quot;&gt;&lt;/script&gt; 
  &lt;script src=&quot;leaflet/leaflet-providers-master/leaflet-providers.js&quot;&gt;&lt;/script&gt;
  </code></pre>
  <p>Thanks.</p>