komponen.vue2

        <div class="">
          <label >Username</label>
          <input type="text"   v-model="$v.username.$model">
          <small  v-if="!$v.username.required">Field is required.</small>
          <small  v-if="!$v.username.minLength">Username must have at least {{$v.username.$params.minLength.min}} letters</small>
        </div>
        <div class="">
          <label >Password</label>
          <input type="text"   v-model="$v.password.$model">
          <small  v-if="!$v.password.required">Field is required.</small>
          <small  v-if="!$v.password.minLength">Password must have at least {{$v.password.$params.minLength.min}} letters.</small>
        </div>