// Function to calculate age
function calculateAge() {
var birthYear = document.getElementById(‘birthYear’).value;
if (birthYear === “”) {
alert(“Please enter a valid birth year.”);
return;
}
var currentYear = new Date().getFullYear(); // Get the current year
var age = currentYear – birthYear;
if (age >= 0) {
document.getElementById(‘age’).textContent = age;
document.getElementById(‘ageResult’).style.display = ‘block’; // Show age result
} else {
alert(“Please enter a valid birth year.”);
document.getElementById(‘ageResult’).style.display = ‘none’; // Hide age result
}
}
// Optional: Google Analytics event tracking (You can use this to track interactions)
function sendAnalyticsEvent(eventCategory) {
if (typeof gtag !== ‘undefined’) {
gtag(‘event’, eventCategory, {
‘event_category’: ‘Age Checker’,
‘event_label’: ‘User Interaction’
});
}
}