get current year javascript

<?php echo date("Y"); ?>

var currentYear= new Date().getFullYear(); 

new Date().getFullYear(); // This will get you the current year

var d = new Date();

var n = d.getFullYear();
 

// Return today's date and time
var currentTime = new Date()

// returns the month (from 0 to 11)
var month = currentTime.getMonth() + 1

// returns the day of the month (from 1 to 31)
var day = currentTime.getDate()

// returns the year (four digits)
var year = currentTime.getFullYear()

// write output MM/dd/yyyy
document.write(month + "/" + day + "/" + year)

new Date().getDate();//gets day of month (1-31)

document.write(new Date().getFullYear());