Why does using float processes give me different hollogram as inputs?

Question

create a framework for my internship but it doesn't work right now I don't know why

nd the following code in the Component TS file:

endDate = new Date();

setEndDate(newValue) {

  if(newValue) {
    this.endDate = newValue;
    return;
  }

  this.endDate = new Date();
}

What I can't get my head around is that sometimes it works and sometimes it doesn't. Specifically, when the date in the picker is not the current date, clicking the x results in it becoming the current date as intended. When the date in the picker is the current date, it goes blank and shows mm/dd/yyyy. It should just stay on the current date.