title: Vuelidate check box validation
body: <p>I am using Vue.js and I am new on it. I am currently working on validation. I had used vuelidate as my validation library. I had successfully done form validation, but trouble came when I had to check validation for check box.</p>
  
  <p>How can I check validation for check box? Also, I had used bootstrapvue to display check box.</p>
  
  <pre><code>   &lt;b-col lg="6" md="6" sm="6"&gt;
        &lt;label&gt;Bus Route&lt;/label&gt;
        &lt;b-form-group&gt;
          &lt;b-form-checkbox v-for="route in busRouteList"
                           v-model.trim="selectedRoute"
                           v-bind:value="route.value"
                           v-bind:unchecked-value="$v.selectedRoute.$touch()"&gt;
            {{route.text}}&lt;/b-form-checkbox&gt;
        &lt;/b-form-group&gt;
        &lt;div class="form-group__message" v-if="$v.selectedRoute.error &amp;&amp; !$v.selectedRoute.required"&gt;
          Field is required
        &lt;/div&gt;
      &lt;/b-col&gt;
  
  validations: {
  
        selectedRoute: {
          required
        },
  }
  </code></pre>