poornachandratejasvi

function calculateAge(birthyear, currentyear) {
var age = currentyear - birthyear;
document.write("You are either " + age + " or " + (age - 1));
}
    
function calculateAge(birthyear){
var d = new Date();
var n= d.getFullYear();
var age =n-birthyear;
document.write("You are either " + age + " or " + (age-1));