ance, and check whether or not a connection has been established.</span>
 <span class="k">let</span> <span class="nv">url</span> <span class="o">=</span> <span class="s">"http://user:password@sample.host.com:8080/a/b/c?query=somestring#hash"</span><span class="o">.</span><span class="nf">data</span><span class="p">(</span><span class="nv">using</span><span class="p">:</span> <span class="o">.</span><span class="n">utf8</span><span class="p">)</span><span class="o">!</span>
 <span class="k">let</span> <span 