[Vuejs]-How can I show "empty" if data is not there?

by

2👍

You can combine the optional chaining operator with the nullish coalescing operator like this :

<v-card-subtitle class="py-0 my-0">{{ vc_rule?.url ?? 'empty' }}</v-card-subtitle>
👤Namysh

1👍

Try with Logical_OR -> ||

new Vue({
  el: '#app',
  vuetify: new Vuetify(),
  data() {
    return {
      vc_rule: null
    }
  }
})
<link href="https://cdn.jsdelivr.net/npm/vuetify@2.x/dist/vuetify.min.css" rel="stylesheet">

<div id="app">
  <v-app>
    <v-card>
      <v-card-subtitle class="py-0 my-0">{{ vc_rule?.url || 'empty' }}</v-card-subtitle>
    </v-card>
  </v-app>
</div>

<script src="https://cdn.jsdelivr.net/npm/vue@2.x/dist/vue.js"></script>
<script src="https://cdn.jsdelivr.net/npm/vuetify@2.x/dist/vuetify.js"></script>
👤Nikola Pavicevic

1👍

If I understand your requirement correctly, we can achieve that in the HTML template itself via use of Optional chaining (?.) along with Nullish coalescing operator (??).

Working Demo :

new Vue({
  el: '#app',
  vuetify: new Vuetify(),
  data() {
    return {
      vc_rule: null
    }
  }
})
<script src="https://cdn.jsdelivr.net/npm/vue@2.x/dist/vue.js"></script>
<script src="https://cdn.jsdelivr.net/npm/vuetify@2.x/dist/vuetify.js"></script>
<link href="https://cdn.jsdelivr.net/npm/vuetify@2.x/dist/vuetify.min.css" rel="stylesheet">

<div id="app">
  <v-card-subtitle class="py-0 my-0">{{ vc_rule?.url ?? 'empty' }}</v-card-subtitle>
</div>
👤Debug Diva

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