JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/vue/0.10.3/vue.js"></script>
<p>vm as data</p>
<div id="a"><span v-text="name"></span></div>
<div id="b"><span v-text="name"></span></div>

JavaScript

var data = {name: "a"};

var a = new Vue({
    el: "#a",
    data: data
});
a.name = "b";
var b = new Vue({
    el: "#b",
    data: data
});