></a><a href="#C10_L4" id=C10_L4></a><a href="#C10_L5" id=C10_L5></a></span></code></pre>
<p>By default, the action handler receives the first parameter of the event
listener, the event object the browser passes to the handler, so
<code>bandDidChange</code> prints <code>Event {}</code>.</p>
<p>Using the <code>value</code> option modifies that behavior by extracting that property from
the event object:</p>
<pre class="language-handlebars line-numbers"><code class="handlebars language-handlebars"><span class=