Vue 2.0 Hello World

HTML

<script src="https://unpkg.com/vue"></script>

<div id="app">
  <p>{{ message }}</p>
</div>

JavaScript

Vue.config.errorHandler = function (err) {
  alert(err)
}

new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue.js!'
  },
  mounted: function(){
  	this.init();
  	
  },
  methods:{
  	init: function(){
    	this.message="init called! Expecting an alert box after this!!";
      throw "some error!!";  
    }
  }
})