title: Get unique values from a List of strings
body: <p>I have a List of strings like this:</p>
  
  <p><code>{"100", "101, "101", "102, "103, "103", "104", "104", "105"}</code></p>
  
  <p>And I need get a new list of strings with only the different values:</p>
  
  <p><code>{"100","101","102","103","104","105"}</code></p>
  
  <p>Anyone have a quick way to do this?</p>