get date in javascript

                                    getDate() in javascript only returns the day as number (1-31)

Example
var d = new Date();
document.getElementById("demo").innerHTML = d.getDate();

Output:
22

Method	            Description
getFullYear()	    Get the year as a four digit number (yyyy)
getMonth()	        Get the month as a number (0-11)
getDate()	        Get the day as a number (1-31)
getHours()	        Get the hour (0-23)
getMinutes()	    Get the minute (0-59)
getSeconds()	    Get the second (0-59)
getMilliseconds()	Get the millisecond (0-999)
getTime()	        Get the time (milliseconds since January 1, 1970)
getDay()	        Get the weekday as a number (0-6)
Date.now()	        Get the time. ECMAScript 5.

                                    function getDate()
{
	let  today 		= new Date();
	let  dd 		= String(today.getDate()).padStart(2, '0');
	let  mm 		= String(today.getMonth() + 1).padStart(2, '0'); //janvier = 0
	let  yyyy 		= today.getFullYear();

	return dd + '/' + mm + '/' + yyyy;
}

                                    var d= new Date();
d.getFullYear();	//Get the year as a four digit number (yyyy)
d.getMonth();	//Get the month as a number (0-11)
d.getDate();	//Get the day as a number (1-31)
d.getHours();	//Get the hour (0-23)
d.getMinutes();	//Get the minute (0-59)
d.getSeconds();	 //Get the second (0-59)
d.getMilliseconds()	//Get the millisecond (0-999)
d.getTime();	//Get the time (milliseconds since January 1, 1970)
d.getDay();  //Get the weekday as a number (0-6)
d.Date.now();	//Get the time. ECMAScript 5.
d.setDate()	//Set the day as a number (1-31)
d.setFullYear()	//Set the year (optionally month and day)
d.setHours()	//Set the hour (0-23)
d.setMilliseconds()	//Set the milliseconds (0-999)
d.setMinutes()	//Set the minutes (0-59)
d.setMonth()	//Set the month (0-11)
d.setSeconds()	//Set the seconds (0-59)
d.setTime()	//Set the time (milliseconds since January 1, 1970)

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

                                    function getTodayDate() {
    let d = new Date();
    return d;
}

console.log(getTodayDate());

//2020-12-06T09:53:14.105Z