2'</span>, <span class="st">'grp3'</span><span class="op">)</span><span class="op">]</span></code></pre></div>
<p>We render a tooltip that shows the names of all the nodes that the hovered path passes through, using very similar syntax to the above tooltip.</p>
<div class="sourceCode" id="cb15"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu">renderTags</span><span class="op">(</span>
  <span class="va">tags</span><span class="op">$</span><span class="fu">div</span><span class=