Time and time stamp conversion

Time turn timestamp:　

　　var dateSel="2019-05-31 10:20"

　　Date.parse (dateSel); // default here will be converted to 000 milliseconds

Timestamp transfer time:

　　　

myTime (nS) {// rotation time stamp

    if (nS == "" || nS == null) {

      var noday = "0";

      return noday;

    } else {

      var mydate = new Date(parseInt(nS));

      var year=mydate.getFullYear();

      var month = mydate.getMonth () + 1; // returns the month, as the return value is zero, for January, so do the processing +1

      var days = mydate.getDate();

      var hours=mydate.getHours();

      var minutes=mydate.getMinutes();

      var seconds=mydate.getSeconds();

      return year+"-"+month+"-"+days+" "+hours+":"+minutes

    }

}