title: Does dot-slash ever behave differently than its ommission?
body: <p>This is more a question of curiosity.  In JavaScript and HTML, does dot-slash <code>./</code> (current working directory), ever solicit different behavior than the omission of it?</p>
  
  <p>I'm assuming it does, otherwise it would never be used.  But I've never run into such a case.</p>
  
  <p>For instance, in javascript:</p>
  
  <pre><code>var config = require('./config.json');
  </code></pre>
  
  <p>vs</p>
  
  <pre><code>var config = require('config.json');
  </code></pre>
  
  <p>are both relative and refer to the same file.  Any case in which it doesn't?</p>