How to compare date string using javascript

Question

I have the following string value of a date, Sun Apr 07 2019 00:00:00 GMT-0300, and I need to compare with the following date form

Answer 1

Sun Apr 07 2019 00:00:00 GMT-0300

2019-04-08T03:00:00.000Z

note that both are the same day

No, they are not.

You can convert them both to ISO string and just compare their date parts as strings (if I understood the question correctly, you want to compare date only, without time):

function isSameDate(date1, date2) {
  const [d1, ] = (new Date(date1)).toISOString().split('T');
  const [d2, ] = (new Date(date2)).toISOString().split('T');
  return d1 === d2;
}