How to convert a string to a Date without moment.js

Question

I have 2 dates stored like this:

"04.12.2019, 09:35" // Today
"05.12.2019, 12:50" // Some different date

And i want to compare them (wether the date has already passed or still will come).

My thought about this was converting them to a Date and then comparing the dates but the online solutions to converting these strings into a date all use moment.js

Is there a way to convert these strings to a date without using moment.js or comparing them without even converting them to a date at all?

Why are you trying to avoid it? – Nicholas K Dec 04 '19 at 08:41 — Nicholas K, Dec 04 '19 at 08:41

KBell · Answer 1 · 2019-12-04T09:10:12.713

0

You can just use Date i guess :

let dateString = '04.12.2019, 09:35'.replace(/\./g,' ').replace(',', '');
let dateString2 = '05.12.2019, 12:50'.replace(/\./g,' ').replace(',', '');
let newDate = new Date(dateString);
let newDate2 = new Date(dateString2);
//Your comparison between newDate and newDate2 here

edited Dec 04 '19 at 09:10

answered Dec 04 '19 at 08:41

KBell

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When i do this: let A = new Date("04.12.2019, 09:35"); console.log(A); I just get the log: "Invalid Date" – niehoelzz Dec 04 '19 at 08:49
@niehoelzz you need to replace dots with spaces. I'll update my answer. – KBell Dec 04 '19 at 09:04
@niehoelzz this should work now. Ah you already solved it :) – KBell Dec 04 '19 at 09:11
Now i got another problem, since im in germany, we write our dates like this: DD MM JJJJ but Date takes the args like the follwing: MM DD JJJJ. Is there a way to set properties to the "new Date()"? – niehoelzz Dec 04 '19 at 09:25
@niehoelzz Not that i know, you can invert month and day by string manipulation (using `dateString.split(' ')`) – KBell Dec 04 '19 at 09:43

score 0 · Answer 2 · answered Dec 04 '19 at 08:41

0

You can do like this:

let A = new Date("04.12.2019, 09:35");
let B = new Date("05.12.2019, 12:50");

if (A === B) { // Do Stuffs }

answered Dec 04 '19 at 08:41

Soumya Ranjan Swain

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2
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When i do this: let A = new Date("04.12.2019, 09:35"); console.log(A); I just get the log: "Invalid Date" – niehoelzz Dec 04 '19 at 08:49
Which Javascript version you are running in? – Soumya Ranjan Swain Dec 04 '19 at 08:52
Typescript version 3.5.3 – niehoelzz Dec 04 '19 at 08:54
It should work, I tested in online compiler also. Try to get the debugging point in this line and check the data of date. – Soumya Ranjan Swain Dec 04 '19 at 08:59

score 0 · Answer 3 · answered Dec 04 '19 at 08:43

0

JavaScript Date instance

let date1 = new Date("04.12.2019, 09:35");
let date2 =  new Date("05.12.2019, 12:50");

let result = date1 < date2 ? 'still will come' : 'already passed'; 
console.log(result);

answered Dec 04 '19 at 08:43

Saurabh Yadav

3,303
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But when i log the date it says "Invalid Date" – niehoelzz Dec 04 '19 at 08:45
seems its working fine – Saurabh Yadav Dec 04 '19 at 08:51

How to convert a string to a Date without moment.js

3 Answers3