Question: I'm new to JavaScript so I apologize if this is simple. I'm passing a couple values to my controller but after, I need to reset the global variables without refreshing the page. My code looks like this:

```
var userName = null;
var _delegated = false;

function setAddtionalData(value) {
  if(value == true) {
    userName = "something";
    _delegated = value;
  }
}

function getAdditionalData() {
  return {
    username: userName,
    delegated: _delegated
  };
  userName = null;        // Does not get hit
  _delegated = false;     // Does not get hit
}

```

But variables never get updated. Is there a way to set these without page a refresh?

Answer: 
Code after the return will not be executed. You need to grab the values, clear the variables, and return the grabbed values:

```
function getAdditionalData() {
  var retval = {
    username: userName,
    delegated: _delegated
  };
  userName = null; 
  _delegated = false;
  return retval;
}

```
Those values are never reached since your return statement exits out of the function.

You should save, `username` and `_delegated` to temporary variables, set them to null, and then return the object.

`return` statements are used to exit out of a function, so anything you put after your `return` statement will not happen.