title: Okay to call prompt() this way?
body: <p>Is it okay to call prompt this way:</p>
  
  <pre><code>  prompt('Enter your text here');
  </code></pre>
  
  <p>instead of:</p>
  
  <pre><code>  prompt('Enter your text here', '');
  </code></pre>
  
  <p>I.e. without passing a suggested input to it?</p>