Age Calculator
const calculateAgeBtn = document.getElementById('calculate-age'); const resultElement = document.getElementById('result');
function calculateAge() { const birthday = new Date(document.getElementById('birthday').value); const ageDifMs = Date.now() - birthday.getTime(); const ageDate = new Date(ageDifMs); const age = Math.abs(ageDate.getUTCFullYear() - 1970); resultElement.innerHTML = `Your age is ${age} years old.`; }
calculateAgeBtn.addEventListener('click', calculateAge);