title: How to make string fast enumeration in string in Swift?
body: <p>For example i have usual fast enumeration</p>
  <pre><code>for (var myChar:Character) in &quot;Hello World!&quot;
  {//code }
  </code></pre>
  <p>This works fine and i can do whatever i want with each character of this string.
  But what if i want to use string instead of character, like this</p>
  <pre><code>for ( var myStr : String) in &quot;Hello World!&quot;//this is error
  {
      switch myStr
      {
      case &quot;Hello&quot;:
      //code
      case &quot;World!&quot;:
      //code
      default:
          break
      }
  }
  </code></pre>
  <p>Is it possible to implement this? Thanks</p>