title: Meaning of () => Operator in C#, if it exists
body: <p>I read this interesting line <a href="https://stackoverflow.com/questions/3626931/method-call-overhead">here</a>, in an answer by Jon Skeet.</p>
  
  <p>The interesting line is this, where he advocated using a delegate:</p>
  
  <pre><code>Log.Info("I did something: {0}", () =&gt; action.GenerateDescription());
  </code></pre>
  
  <p>Question is, what is this ()=> operator, I wonder? I tried Googling it but since it's made of symbols Google couldn't be of much help, really. Did I embarrassingly miss something here?</p>