Vue.js v-for item, bind attribute to current index / key

Question

<li v-for="(value, key) in {facebook: [data], twitter: [data]}">
    <i class="icon" :class="key"></i>
    ....
</li>

Error: [Vue warn]: Trying to access non-existent property "key" while rendering.

How can I bind key in attributes of li's children? It only works in li itself.

Roy J · Accepted Answer · 2016-08-31 17:03:10Z

4

It works as expected for me. If you inspect the items in the snippet below, you'll see the class is assigned.

new Vue({el: 'body'});

<script src="//cdnjs.cloudflare.com/ajax/libs/vue/1.0.26/vue.min.js"></script>
<li v-for="(key, value) in {facebook: ['data'], twitter: ['data']}">
  <i class="icon" :class="key">{{key}}</i>
</li>

answered Aug 31, 2016 at 17:03

Roy J

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1 Comment

NestedWeb Over a year ago

Oh yeah, it does. Thanks. It was my HTML structure.

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