CodeAlpha_Age_Calculator/script.js at main · Ahvabkhan/CodeAlpha_Age_Calculator · GitHub

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function calculateAge() {
    const birthDate = document.getElementById('birthDate').value;
    if (birthDate) {
        const birthDateObj = new Date(birthDate);
        const currentDate = new Date();

        let age = currentDate.getFullYear() - birthDateObj.getFullYear();
        const monthDifference = currentDate.getMonth() - birthDateObj.getMonth();

        if (monthDifference < 0 || (monthDifference === 0 && currentDate.getDate() < birthDateObj.getDate())) {
            age--;
        }

        document.getElementById('result').textContent = `You are ${age} years old.`;
    } else {
        document.getElementById('result').textContent = 'Please enter a valid birthdate.';
    }
}