check two date in javascript code example

Example 1: javascript check if two date are ugual

const isSameDate = (dateA, dateB) => {
  return dateA.toISOString() === dateB.toISOString();
};
const r = isSameDate(new Date(2010, 10, 20), new Date(2010, 10, 20));
console.log(r); //> true

Example 2: compare dates in js

var date1 = new Date('December 25, 2017 01:30:00');
var date2 = new Date('June 18, 2016 02:30:00');

//best to use .getTime() to compare dates
if(date1.getTime() === date2.getTime()){
    //same date
}

if(date1.getTime() > date2.getTime()){
    //date 1 is newer
}