title: TypeError occurs upon inserting a working function into a setTimeout call
body: <p>A snipit of code that I am using works perfectly when it contains the first line of code shown below.  However, when I replace that line with the second line of code shown below, a &quot;TypeError [ERR_INVALID_CALLBACK]: Callback must be a function&quot; error is thrown.  Any suggestions on what I might do to fix this problem?  Thanks.</p>
  <pre><code>getData(body);
  setTimeout(getData(body), 0);
  </code></pre>