How to set default value to select menu in Vue.js

I need to set the deault value to the select dropdown in Vue.js compoenent

I am retrieving the data from REST API end point

This is what I have in template section of the component

I have named the model v-model=”category” which is defined in data() section

In the mount() , I am going to set the default value

Here I am getting the category id from the product and assign it to category.

Now you have set the default value