JSFiddle - React, Tailwind, and code Playground

JavaScript

var holidayArray2013 = [new Date('October 3, 2013 00:00:00 GMT+0200').getTime(), new Date('December 25, 2013 00:00:00 GMT+0100').getTime(), new Date('December 26, 2013 00:00:00 GMT+0100').getTime()];
var DateOfOrder = new Date('October 3, 2013 00:00:00 GMT+0200').getTime();
if ($.inArray(DateOfOrder, holidayArray2013) > -1) {
  console.log("is holiday");
}
else{
    console.log("is not holiday")
}