Vue Get First Element of Array

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<html>
<head>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
    <h3>Vue Js Get First Element of Array using slice() method</h3>
    <div id="app">
        <p>{{arr}}</p>
        <p>First Element: {{firstElement}}</p>
    </div>
    <script type="module">
        const app = new Vue({
            el: "#app",
            data() {
                return {
                    arr: ['Vue js', 'React Js', 'Angular Js', 'Express Js', 'Node Js'],
​
                };
            },
            computed: {
                firstElement() {
                    return this.arr.slice(0, 1)[0];
                }
            }
​
        })
    </script>
</body>
</html>