mahdisoultana

class CalendarItem {
    static #UNSET = Symbol("unset")
    static #isUnset(v) {
        return v === this.#UNSET;
    }
    static isSameItem(item1,item2) {
        if (#ID in item1 && #ID in item2) {
            return item1.#ID === item2.#ID;
        }
        else {

mahdisoultana

const mapNumber = (number, in_min, in_max, out_min, out_max) => {
  return (number - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
};