How to modify component's class in directive

[jorgy343]

If I have the following component defined:

<q-input v-my-directive class="existing-class" />

How can I add or modify the class in that component using the v-my-directive directive?

[s.molinari]

Why with a directive? You can make the class dynamic by binding it.

https://vuejs.org/v2/guide/class-and-style.html

Scott