How to know if a function is async?
<p>I have to pass a function to another function, and execute it as a callback. The problem is that sometimes this function is async, like:</p>

<pre><code>async function() {
 // Some async actions
}
</code></pre>

<p>So I want to execute <code>await callback()</code> or <code>callback()</code> depending on the type of function that it is receiving.</p>

<p>Is there a way to know the type of the function??</p>