Get name as String from a Javascript function reference?
<p>I want to do the opposite of <a href="http://stackoverflow.com/questions/773184/get-javascript-function-object-from-its-name-as-a-string">Get JavaScript function-object from its name as a string?</a></p>

<p>That is, given:</p>

<pre><code>function foo()
{}

function bar(callback)
{
  var name = ???; // how to get "foo" from callback?
}

bar(foo);
</code></pre>

<p>How do I get the name of the function behind a reference?</p>
