ce your application code in <code>index.js</code>. Here is a simple starting point:</p>
<pre><code class="language-js">require(<span class="string">'ol/ol.css'</span>);
<span class="keyword">var</span> ol_Map = require(<span class="string">'ol/map'</span>).<span class="keyword">default</span>;
<span class="keyword">var</span> ol_layer_Tile = require(<span class="string">'ol/layer/tile'</span>).<span class="keyword">default</span>;
<span class="keyword">var</span> ol_source_OSM = require(<span class="string"