title: Adding Values In Dictionary With Swift
body: <p>I have this Dictionary: </p>
  
  <pre><code>var dict = ["cola" : 10, "fanta" : 12, "sprite" : 8]
  </code></pre>
  
  <p>and I want to add the values for example to have the result as 30 , how can I do that? In other words, how can I only add the numbers, not the words?</p>