I have 3 dropdowns and I'm trying to figure out how to disable an already chosen option.
Regarding to [this post here](https://stackoverflow.com/questions/35594885/vuejs-disabled-selected-dropdown-options) I tried the following:

```
<template v-for="n in 3">
  <select
    v-model="user.languages[n-1]"
    :key="n"
    class="btn btn-secondary d-flex header-input"
  >
    <option
      v-for="language in languages"
      :key="language.id"
      :id="n"
      :value="language['lang_' + locale]"
      :disabled="user.languages.includes(language.value)"
    >{{language['lang_'+locale]}}</option>
  </select>
</template>

```

because `user.languages` returns an array.

But this doesn't seem to work at all. If I remove the `includes(language.value)` then everything is disabled right off the bat (obviously).