Event listeners



V – on the foundation









<! DOCTYPEhtml>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div id="app">
        <h2>{{counter}}</h2>
        <button v-on:click="increment">+</button>
        <button @click="decrement">-</button>
    </div>

    <script src=".. /js/vue.js"></script>
    <script>
        const app = new Vue({
        el: '#app'.data: {
            counter: 0
            },
            methods: {
                increment(){
                this.counter++
                },
                decrement(){
                    this.counter--
                }
            }
        })
    </script>
</body>
</html>
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