title: Find out if string list items startswith another item from another list
body: <p>I'd like to loop over a string list, and find out if the items from this list start with one of the item from another list.</p>
  
  <p>So I have something like:</p>
  
  <pre><code>List&lt;string&gt; firstList = new List&lt;string&gt;();
  firstList.Add("txt random");
  firstList.Add("text ok");
  List&lt;string&gt; keyWords = new List&lt;string&gt;();
  keyWords.Add("txt");
  keyWords.Add("Text");
  </code></pre>