Vue Router

vue-router.js

import Vue from "vue"
import App from "./App.vue";
import VueRouter from "vue-router";
import User from "./components/user/User.vue";
import Home from './components/Home.vue';

Vue.use(VueRouter);

const router = new VueRouter(
  {
    routes : [
      {path:'',component: Home},
      {path:'/user',component: User}
    ],
    mode: 'history'
  }
);

new Vue({
  el: '#app',
  router: router,
  render: h => h(App)
});

// Componente
<template>
  <ul class="nav nav-pills">
    <router-link tag="li" to="/" active-class="active" exact><a>Home</a></router-link>
    <router-link tag="li" to="/user" active-class="active"><a>User</a></router-link>

  </ul>
</template>

// Mudar atraves de javascript
export default {
  
  methods: {
    nagivationToUser(){
      this.$router.push('/user');
    }
  }
  
}