title: Get the attribute value of q-btn
body: <p>I have a  component, in that I have added a custom attribute called role-id (btn inside a v-for)</p>
  <pre><code>&lt;q-btn @click=&quot;editRole&quot; :role-id=&quot;role.id&quot; round color=&quot;primary&quot; icon=&quot;edit&quot; /&gt;
  </code></pre>
  <p>In this, I want to access the value inside the <code>:role-id</code> but it returns me null instead of the value</p>
  <pre><code>const editRole = (e) =&gt; {
    console.log(e.target.getAttribute('role-id'));
  }
  </code></pre>