date format dd/mm/yyyy hh:mm:ss javascript code example

Example 1: javascript format date yyyy-mm-dd

let today = new Date()
today.toISOString().split('T')[0]

Example 2: javascript date from string dd/mm/yyyy HH mm ss

var d='dd/mm/yy hh:MM:ss';
    var d1=d.split(" ");
    var date=d1[0].split("/");
    var time=d1[1].split(":");
    var dd=date[0];
    var mm=date[1]-1;
    var yy=date[2];
    var hh=time[0];
    var min=time[1];
    var ss=time[2];
    var fromdt= new Date("20"+yy,mm-1,dd,hh,min,ss);