• Case study:
<! DOCTYPE html> <html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
    <h2>{{firstName + ' ' + lastName}}</h2>
    <h2>{{firstName}} {{lastName}}</h2>
    <h2>{{getFullName()}}</h2>
    <h2>{{fullName}}</h2>

</div>

<script src=".. /js/vue.js"></script>
<script>
    const app = new Vue({
    el: '#app',
    data: {
        firstName: 'Tom',
        lastName: 'Jerry'
        },
        // Computed: Calculates attributes ()
        computed: {
            fullName: function () {
                return this.firstName + "" + this.lastName
            }
        },
        methods: {
            getFullName(){
                return this.firstName + ' ' + this.lastName
            }
        }
    })
</script>

</body>
</html>
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