sorting date with time in descending order in javascript

Question

I have dynamic date and time being generated and I need to sort them in descending order using JavaScript.

my data is in the below format.

var array= ["25-Jul-2017 12:46:39 pm","25-Jul-2017 12:52:23 pm","25-Jul-2017 12:47:18 pm"];

Anyone help would be appreciated.

`array.sort((a,b) => new Date(b).getTime() - new Date(a).getTime())` — Rajesh, Jul 25 '17 at 06:56
Possible duplicate of [Sort Javascript Object Array By Date](https://stackoverflow.com/questions/10123953/sort-javascript-object-array-by-date) — Rajesh, Jul 25 '17 at 06:57
Do you mean `-`? We can use ternary operator with `a > b ? 1 : a < b : -1 : 0` — Rajesh, Jul 25 '17 at 07:00

score 1 · Answer 1 · answered Jul 25 '17 at 06:57

1

Here is the working code for you:

var array = ["25-Jul-2017 12:46:39 pm", "25-Jul-2017 12:52:23 pm", "25-Jul-2017 12:47:18 pm", "25-Jul-2017 12:59:18 pm"];

array.sort((a, b) => new Date(b).getTime() - new Date(a).getTime())

console.log(array)

answered Jul 25 '17 at 06:57

Milan Chheda

7,851
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1

that wont work in firefox - you're a chrome user, right? – Jaromanda X Jul 25 '17 at 06:58
Oh, didn't knew that. Yes, I did that in chrome. – Milan Chheda Jul 25 '17 at 06:58
Whoops. Yes @Rajesh. I think, while I was coding in the code-editor, you had already commented. Its a common sorting code. – Milan Chheda Jul 25 '17 at 06:59
@JaromandaX - Do you have know how we can make it work across browsers? what's the fix? – Milan Chheda Jul 25 '17 at 07:00
use a library like moment.js – Jaromanda X Jul 25 '17 at 07:00

score 0 · Answer 2 · edited Jul 25 '17 at 07:00

0

var array = ["25-Jul-2017 12:46:39 pm", "25-Jul-2017 12:52:23 pm", "25-Jul-2017 12:47:18 pm"];

array.sort(function(a, b) {
  return new Date(b) - new Date(a);
});

console.log(array);

edited Jul 25 '17 at 07:00

Milan Chheda

7,851
3
18
35

answered Jul 25 '17 at 06:59

Ryan Tsui

759
3
14

First its missing explanation. Second, please check other answer. Its already covered – Rajesh Jul 25 '17 at 07:01
Agree with @Rajesh. It's covered. Secondly, start using code editor so that people can see the output. And lastly, yes, you need to add some explanation about your answer. – Milan Chheda Jul 25 '17 at 07:02
1

Adding to @MilanChheda comment, `<>` icon is used to launch code editor. You can put your *CSS/HTML/JS* code and make it executable. This helps people to verify you code. – Rajesh Jul 25 '17 at 07:03

Durga · Answer 3 · 2017-07-25T07:16:32.270

DEMO

var array= ["25-Jul-2017 12:46:39 pm","25-Jul-2017 12:52:23 pm","25-Jul-2017 12:47:18 pm"];
var dateAr = [];

for(var i=0;i<array.length;i++){
 dateAr.push(new Date(array[i].replace(/-/g,'/')).getTime()); //convert to milisecond
}


var sortAr = dateAr.sort(function (a, b) {  return a - b;  }); //sort it

var resArr = [];
for(var i=0;i<array.length;i++){
 resArr.push(new Date(sortAr[i])); //make date object
}
console.log(resArr);

Convert to millisecond from Date , and then sort it. and make Date object from millisecond. use this replace(/-/g,'/') to replace date string, it works in all browser.

sorting date with time in descending order in javascript

3 Answers3