var app = new Vue({ el: '#app', data: { name: 'Tony', phone: '0123456789', now: (new Date()).toLocaleTimeString() } }) var timer = setInterval(function(){ var d = new Date() app.now = d.toLocaleTimeString() }, 1000)
<div id="app"> Name: {{ name }} <br> Phone: {{ phone }} <br> Now: {{ now }} </div> <script src="https://cdn.jsdelivr.net/vue/2.2.4/vue.js"></script>