install:

npm install -g vue-cli
vue init webpack vueapp01
npm install
npm run dev
npm run build

see src/main.js

single-file component the App implementation is split up into three parts:

    <template></template>: Component's template code
    <script></script>: Component's script code
    <style></style>: Component' CSS code

std directives

v-for: render an element multiple times based on source data

v-model: creates a two-way binding on an input element or a component

    <input type="text" v-model="input_val">

v-text: 

    <span v-text="input_val"></span>

example component

 
    <template>
      <div class="hello">
        <h1>{{ msg }}</h1>
        <hr />
        <div>
          <ul>
            <li v-for="user in users">
              {{user.firstname}} {{user.lastname}}
            </li>
          </ul>
        </div>
        <hr />
        <div>
          <input type="text" v-model="input_val">
        </div>
        <div>
          Input Value: <span v-text="input_val"></span>
        </div>
        <hr />
        <div>
          <button class="btn btn-primary" v-on:click="counter++">You've clicked this button {{counter}} times!</button>
        </div>
      </div>
    </template>
    <script>
    export default {
      name: 'hello',
      data () {
        return {
          msg: 'Welcome to Your Vue.js App',
          users: [
            {firstname: 'Sebastian', lastname: 'Eschweiler'},
            {firstname: 'Bill', lastname: 'Smith'},
            {firstname: 'John', lastname: 'Porter'}
          ],
          input_val: '',
          counter: 0
        }
      }
    }
    </script>
    <!-- Add "scoped" attribute to limit CSS to this component only -->
    <style scoped>
    h1, h2 {
      font-weight: normal;
    }
    ul {
        list-style-position: inside;
    }
    a {
      color: #42b983;
    }
    </style>