[Vuejs]-If stament for atrribute with no value

Use this code, It works:

    div.my-input 
            input(type="text", autofocus="",placeholder="focused onLoad")

div.my-input
            input(type="text",placeholder="not focused")

<div class="my-input"> 
  <input type="text" autofocus="" placeholder="focused onLoad"/>
</div>
<div class="my-input">
  <input type="text" placeholder="not focused"/>
</div>

Like you can see here the demo link