balazimichal/gist:18d6b4ddd6d6bda8c2a38d2ba22c48db

## gistfile1.txt
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <title>Vue</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  </head>


  <body>


    <div id="app">
      <h1>{{ counter }}</h1>
      <button v-on:click="increase(2)">+</button><button v-on:click="decrease(2)">-</button>
    </div>

    <script>
      new Vue({
        el: '#app',
        data: {
          counter: 0
        },
        methods: {
          decrease: function(step) {
            this.counter = this.counter - step
          },
          increase: function (step) {
            this.counter = this.counter + step
          }
        }

      })
    </script>


  </body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8" />
	<title>Vue</title>
	<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
	</head>


	<body>



	<div id="app">
	<h1>{{ counter }}</h1>
	<button v-on:click="increase(2)">+</button><button v-on:click="decrease(2)">-</button>
	</div>

	<script>
	new Vue({
	el: '#app',
	data: {
	counter: 0
	},
	methods: {
	decrease: function(step) {
	this.counter = this.counter - step
	},
	increase: function (step) {
	this.counter = this.counter + step
	}
	}

	})
	</script>


	</body>
	</html>