title: How to set today date as a default date in antd?
body: <p>I want to set today date as a default selected date in ant design date picker.
  how can I do that?</p>
  
  <pre><code>&lt;DatePicker
   onChange={this.onChange}
   defaultValue={moment("YYYY-MM-DD")}
   /&gt;
  </code></pre>
  
  <p>I am trying to do that using this line it is not working.</p>