Vue.js bar chart by nitaku

index.js

// Generated by CoffeeScript 1.10.0
(function() {
  var app;

  app = new Vue({
    el: '#app',
    data: {
      values: [10, 20, 30]
    },
    methods: {
      add_random_datapoint: function() {
        return this.values.push(Math.random() * 300);
      }
    }
  });

}).call(this);

index.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Vue.js Bar Chart</title>
  <link type="text/css" href="index.css" rel="stylesheet"/>
  <script src="https://unpkg.com/vue/dist/vue.js"></script>
</head>
<body>
  
  <div id="app">
    <button v-on:click="add_random_datapoint">
      Add
    </button>
    <svg>
      <rect
        class="bar"
        v-for="(d, i) in values"
        :x="i*10"
        :y="300-d"
        width="9"
        :height="d"
      />
    </svg>
  </div>
  
  <script src="index.js"></script>
</body>
</html>

index.coffee

app = new Vue
  el: '#app'
  data:
    values: [10,20,30]
  methods:
    add_random_datapoint: () ->
      @values.push Math.random()*300

index.css

body, html {
  padding: 0;
  margin: 0;
  height: 100%;
}
svg {
  width: 100%;
  height: 100%;
  background: white;
}
.bar {
  fill: teal;
}