Angular 2 - How do you call a function in a sibling component?
<p>I have 2 sibling components that need to communicate:</p>

<p><code>&lt;app-controls&gt;&lt;/app-controls&gt;
 &lt;app-main&gt;&lt;/app-main&gt;
</code></p>

<p>app-controls contains buttons that need to trigger events in the app-main component. Is there a Angular 2 style guide compliant way of doing so?</p>