Vue js Aadhaar Masking

<!DOCTYPE html>
<html>
<head>
	<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
</head>
<body>
	<h3>Vue js aadhar masking</h3>
	<div id="app">
		<input type="text" v-model="adharNumber" @input="maskedAdharNumber">
	</div>
	<script type="module">
		const app = Vue.createApp({
			data() {
				return {
					adharNumber: ''
				}
			},
			methods: {
				maskedAdharNumber() {
					this.adharNumber = this.adharNumber.replace(/\D/g, '').substring(0, 12); // Remove all non-numeric characters and limit to 12 digits
					if (this.adharNumber.length > 0) {
						this.adharNumber = this.adharNumber.match(/.{1,4}/g).join(' '); // Add a space after every 4 characters
					}

}
			}
		});
		app.mount('#app');
	</script>
	<style scoped>
		input {
			height: 40px;
			text-align: center;
			font-size: 24px;
			margin: 0;
			padding-left: 0;
			border: none;
			border-bottom: 2px solid #ccc;
			box-shadow: none;
			background-color: transparent;
			color: #333;
			transition: all 0.3s ease-in-out;
			font-family: Arial, Helvetica, sans-serif;
		}

input:focus {
			outline: none;
			border-bottom-color: #007bff;
		}
	</style>
</body>
</html>