Untitled

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://unpkg.com/vue"></script>
</head>
<body>
    <div id="app">
        {{number}}
        <!-- v-bind:атрибут -->
        <a v-bind:href="link">yandex1</a>
        <!-- :атрибут -->
        <a :href="link">yandex2</a>
    </div>
    <script>
        let vm = new Vue({
            el: "#app",
            data: {
                number: 1,
                link: "http://yandex.ru"
            },
            methods:{
                // метод обработчик событий !!!
                inc: function(){
                    this.number++;
                }
            }
        })
    </script>
</body>
</html>