Vue js not equal operator

<!DOCTYPE html>
<html>
<head>
    <script src="https://unpkg.com/vue@3.2.22/dist/vue.global.js"></script>
</head>
<body>
    <div id="app">
        <h3>Vue Js Check if value is not equal to another value in the array</h3>
        <p v-if="filteredItems.length === 0">No matching items found.</p>
        <ul>
            <li v-for="item in filteredItems" :key="item.id">{{ item.name }}</li>
        </ul>
    </div>

})

app.mount('#app')
    </script>
    <style scoped>
        /* Reset default styles */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

/* Set up some basic styles for the container */
        #app {
            max-width: 800px;
            margin: 0 auto;
            padding: 2rem;
        }

/* Style the heading */
        h3 {
            font-size: 1.8rem;
            font-weight: bold;
            margin-bottom: 1.5rem;
            color: #333;
        }

/* Style the message when there are no matching items */
        p {
            font-size: 1.2rem;
            color: #999;
        }

/* Style the list of items */
        ul {
            list-style: none;
            margin-top: 1.5rem;
        }

li {
            font-size: 1.4rem;
            line-height: 1.5;
            margin-bottom: 0.5rem;
            border-bottom: 1px solid #ddd;
            padding-bottom: 0.5rem;
        }

li:last-child {
            border-bottom: none;
            margin-bottom: 0;
        }

/* Style the list of items when there are no matching items */
        ul.empty {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 150px;
        }

ul.empty li {
            display: none;
        }
    </style>
</body>

</html>