title: how to extract mulitple method names which are used inside of a function
body: <p>I get a Javascript function in the form of string from ui-ace as follows,</p>
  
  <p><code>aceCode = "function funtionName(){ methodAdd(4,8); methodSub(8,4)}";</code></p>
  
  <p>And I want to extract only method names as <code>methodAdd,methodSub</code> from <code>aceCode</code>, is their any option to do this?</p>