javascript get day

switch (new Date().getDay()) {
  case 0:
    day = "Sunday";
    break;
  case 1:
    day = "Monday";
    break;
  case 2:
    day = "Tuesday";
    break;
  case 3:
    day = "Wednesday";
    break;
  case 4:
    day = "Thursday";
    break;
  case 5:
    day = "Friday";
    break;
  case 6:
    day = "Saturday";
}

var d = new Date();

var days = ["Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday"];

document.getElementById("demo").innerHTML = days[d.getDay()];
// get the name of the week as string and not number
 

var d = new Date();
var n = d.getDay();

var d = new Date();

var months = ["January", "February", "March", "April", "May",
"June", "July", "August", "September", "October",
"November", "December"];

document.getElementById("demo").innerHTML = months[d.getMonth()];
 

var d = new Date();

document.getElementById("demo").innerHTML = d.getMonth();
 

 var d = new Date();

document.getElementById("demo").innerHTML = d.getFullYear();