Vue

HTML

<div id = "app"></div>

Vue

var vm = new Vue({
  el: '#app',
});
var myMixin = {
  created: function () {
    this.startmixin()
  },
  methods: {
    startmixin: function () {
      alert("Welcome  to mixin example");
    }
  }
};
var Component = Vue.extend({
  mixins: [myMixin]
})
var component = new Component();