find year javascript

1// Return today's date and time
2var currentTime = new Date()
3
4// returns the month (from 0 to 11)
5var month = currentTime.getMonth() + 1
6
7// returns the day of the month (from 1 to 31)
8var day = currentTime.getDate()
9
10// returns the year (four digits)
11var year = currentTime.getFullYear()
12
13// write output MM/dd/yyyy
14document.write(month + "/" + day + "/" + year)

1
2const year = prompt("enter year");
3debugger;
4if(year%4==0){
5    if(year%100==0){
6        if(year%400==0){
7            console.log(year + " is  leap year")
8
9        }
10 
11    else{
12         console.log(year + "  is not a leap year");
13    }
14
15}else {
16    console.log(year +"   is a leap year");
17}
18}else {
19    console.log("the year  "+ year + "is not a leap year");
20}