/span> <span class="token string">"bandDidChange"</span><span class="token delimiter punctuation">}}</span></span></span></span></span> <span class="token punctuation">/></span></span>
<span aria-hidden="true" class="line-numbers-rows"><a href="#C8_L1" id=C8_L1></a><a href="#C8_L2" id=C8_L2></a></span></code></pre>
<p>Let's assume we have an action handler that prints its first parameter:</p>
<pre class="language-javascript line-numbers"><code class="javascript language-javascript"><span class="token litera