JSFiddle - React, Tailwind, and code Playground

JavaScript

var pickervalue = "11.16.2017";

var datepicker = pickervalue.split(".");
var joindate = new Date();
var numberOfDaysToAdd = 1;
joindate.setFullYear(parseInt(datepicker[2]), parseInt(datepicker[1])-1, parseInt(datepicker[0])+numberOfDaysToAdd);
document.write(joindate);