vue-select-2-example

app.js

const app = new Vue({
    el: '#app',
    data() {
        return {
            users: [
                { id: 1, text: '[email protected]' },
                { id: 2, text: '[email protected]' },
            ],              
        }
    },   
    watch: {
        user() {
            this.updateUsers();
        }
    },
    mounted()  {
        $(this.$refs.user_select).select2({data: this.users})
            .on('change',this.updateUsers)
            .select2('val','2')
            
    },
    methods: {
        updateUsers(e) {
            console.log(e.target.value);
        }
    }
});