Required value

[khriztianmoreno]

Is there any way to be mandatory these fields before submitting to a form?

<div class="col-xs col-md col-xl search-bar-cell hidden-sm-down">
    {{pick-a-date
      class="form-control js-pickadate-date js-pickadate-start"
      name="start_date"
      date=(readonly starDate)
      on-selected=(action (mut starDate))
      placeholder="Start Date"
      options=(readonly extraPickadateOptions)
     required=true
    }}
  </div>
  <div class="col-xs col-md col-xl search-bar-cell hidden-sm-down">
    {{pick-a-time
      class="form-control js-pickadate-date js-pickadate-start"
      name="start_time"
      date=(readonly starTime)
      on-selected=(action (mut starTime))
      placeholder="Start Time"
      options=(readonly extraPickaTimeOptions)
    }}
  </div>

In the official documentation I suggest this, but the truth, this does not work.

Any idea how to solve it?