title: What does "javascript:void(0)" mean?
body: <pre class="lang-html prettyprint-override"><code>&lt;a href=&quot;javascript:void(0)&quot; id=&quot;loginlink&quot;&gt;login&lt;/a&gt;
  </code></pre>
  <p>I've seen such <code>href</code>s many times, but I don't know what exactly that means.</p>