Answers for "how to add days in date in javascript"

javascript current date add 30 days

var future = new Date();
future.setDate(future.getDate() + 30);

javascript add day to date

function addDays(date, days) {
  var result = new Date(date);
  result.setDate(result.getDate() + days);
  return result;
}

new date() in javascript 3 days from now

var dt = new Date();
dt.setDate(dt.getDate() + 3);

javascript date add days

function addDays(originalDate, days){
  cloneDate = new Date(originalDate.valueOf());
  cloneDate.setDate(cloneDate.getDate() + days);
  return cloneDate;
}

let appointment = new Date("February 12, 2021 00:00:00");
let newAppointment = addDays(appointment, 7);

console.log(appointment.getDate()); // 12
console.log(newAppointment.getDate()); // 19

javascript add days

Date.prototype.addDays = function(days) {
    var date = new Date(this.valueOf());
    date.setDate(date.getDate() + days);
    return date;
}