title: Deleting Specific Substrings in Strings [Swift]
body: <p>I have a string <code>var m = "I random don't like confusing random code."</code> I want to delete all instances of the substring <code>random</code> within string <code>m</code>, returning string <code>parsed</code> with the deletions completed. </p>
  
  <p>The end result would be: <code>parsed = "I don't like confusing code."</code></p>
  
  <p>How would I go about doing this in Swift 3.0+?</p>