JavaScript Fecha Agregar días
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
Wicked Wryneck