title: XCode Show Function Parameters Hotkey
body: <p>One of the few things I haven't figured out how to do in XCode that I could do in Visual Studio is list the parameters of a function. I've Googled this a few times now, and still haven't found an answer.</p>
  
  <p>If I start typing out, for example <code>round(</code> I get a list of the parameters and its return type. However, if I already typed out the code</p>
  
  <pre><code>x = round(y);
  </code></pre>
  
  <p>and I cursor over to it, I don't know how to show parameter info without retyping it. Anyone know how the hotkey for this?</p>