Sort by Rate on Vue

I got this code: https://codepen.io/nuzze/pen/XWryNNY
What I want is that when you click on "Sort by Rate" the items are sorted by rate.
This is the app.js
const app = new Vue ({ el: '#app', data: function(){ return { complejos: [ { name: 'nice', rate: '3.8' }, { name: 'cool', rate: '3.9' }, { name: 'beauty', rate: '4.1' } ] } }});
Thanks<3