Vue Js Multiple Ternary Operator

<!DOCTYPE html>
<html>
<head>
    <script src="https://unpkg.com/vue@3.2.22/dist/vue.global.js"></script>
</head>
<body>
    <div id="app">
        <h1>Vue Js Multiple Ternary Operator Example</h1>
        <div>
            {{ isLoggedIn
            ? (user.role === 'admin'
            ? 'Welcome, admin!'
            : (user.role === 'user'
            ? 'Welcome, user!'
            : 'Unknown user role.'))
            : 'Please log in.' }}
        </div>
        <input v-model="user.role">
        <button @click="isLoggedIn = !isLoggedIn">{{isLoggedIn ? 'Signout': 'LogIn'}}</button>

</div>
    <script type="module">
        const app = Vue.createApp({
            data() {
                return {
                    isLoggedIn: false,
                    user: {
                        role: 'user'
                    }
                }
            }
        })

app.mount('#app')
    </script>
    <style scoped>
        #app {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

h1 {
            font-size: 24px;
            text-align: center;
            margin-bottom: 20px;
        }

div {
            font-size: 18px;
            margin-bottom: 20px;
            padding: 10px;
            border: 1px solid black;
        }

input {
            font-size: 18px;
            padding: 10px;
            margin-bottom: 20px;
        }

button {
            font-size: 18px;
            padding: 10px 20px;
            background-color: blue;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
        }
    </style>

</body>

</html>