title: F# how to write an empty statement
body: <p>How can I write a no-op statement in F#?</p>
  
  <p>Specifically, how can I improve the second clause of the following match statement:</p>
  
  <pre><code>match list with
      | [] -&gt; printfn "Empty!"
      | _ -&gt; ignore 0
  </code></pre>