How to compare date in javascript in this format?

Question

How to compare today's date time with 2016-06-01T00:00:00Z format in javascript ?

I get 2016-06-01T00:00:00Z date format from backend. I want to check this with todays date, but not sure of how to check in that format.

I am extremely new to javascript.

This is a string. You fetch a string from the backend. You just have to replace the string in my example. — Seblor, Jul 12 '17 at 15:26
Replace what @Seblor put inside the parenthesis with whichever variable containing the date that you get from server side — Lixus, Jul 12 '17 at 15:26

score 2 · Answer 1 · answered Jul 12 '17 at 15:28

If you search a little you can found the solution.

You have to parse your string into Js Date and compare it with today's date.

var stringDate ="2016-06-01T00:00:00Z";

var jsDate = new Date(stringDate).getTime(); //getTime() => time in ms
var today = new Date().getTime();

console.log("date is oldest than today :", jsDate < today)

Seblor · Answer 2 · 2017-07-12T15:36:52.560

0

Using my comment on the question, you can quickly do it in one line. @Alexis answer is a bit overkill (no offense)

var result = new Date("2016-06-01T00:00:00Z") > new Date ? "After now" : "Before now";

edited Jul 12 '17 at 15:36

answered Jul 12 '17 at 15:30

Seblor

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this doesn't work. you can't compare Date object like this, and there's a typo error ;) – Alexis Jul 12 '17 at 15:30
Nope. it works fine. doing math comparaison will use the timestamp, so integers. – Seblor Jul 12 '17 at 15:31
Really ? Try it, it told me that 2016-06-01 is after now. It can help you https://stackoverflow.com/questions/492994/compare-two-dates-with-javascript – Alexis Jul 12 '17 at 15:32
Oh my bad, I mixed up the results. it's the other way around, gonna edit – Seblor Jul 12 '17 at 15:34
you always have the second result cause you can't compare date object like this ! Your solution is wrong. – Alexis Jul 12 '17 at 15:35
1) I removed the substraction. 2) you can. Dates are just timestamp integers with some functions on it. – Seblor Jul 12 '17 at 15:37
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/149024/discussion-between-seblor-and-alexis). – Seblor Jul 12 '17 at 15:38
Take a look at the link in my comment ! Date are object and not timestamp ! you have to call the getTime() method to get the timestamp ! – Alexis Jul 12 '17 at 15:38

Khauri · Answer 3 · 2017-07-12T15:38:25.020

0

use the Date Object and Date#getTime which returns the number of milliseconds since the unix epoch. Pretty simple.

let 
  dateStr        = "2016-06-01T00:00:00Z"
  d1             = new Date(dateStr),
  d2             = new Date(),
  d1IsBeforeD2   = d2.getTime() > d1.getTime()
;

console.log(d1IsBeforeD2);

edited Jul 12 '17 at 15:38

answered Jul 12 '17 at 15:32

Khauri

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How to compare date in javascript in this format?

3 Answers3