How to sort by JSON element

Question

Each array has the following data:

{{ id: 39, treaty_number: "qwe", insurant_name: "222", belonging_to_the_holding_company: "test", date_start: "2016-04-15", etc }}

How do I sort each array in ascending order date_start?
I am writing on Angular 4 and typescript v.2.4.1. It is possible and on pure JS. Thank you!

Why not just a standard javascript sort? .sort((a, b) => { if (a.date_start < b.date_start) { return -1; } if (a.date_start > b.date_start) { return 1; } return 0; }); — Z. Bagley
– Z. Bagley, Commented Oct 8, 2017 at 15:43

Nina Scholz · Accepted Answer · 2017-10-08 15:44:21Z

2

While you have ISO 8601 dates, you could sort it with String#localeCompare.

data.forEach(function (array) {
    array.sort(function (a, b) {
        return a.date_start.localeCompare(b.date_start);
    });
});

answered Oct 8, 2017 at 15:44

Nina Scholz

388k26 gold badges367 silver badges417 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

asmmahmud · Accepted Answer · 2017-10-08 15:42:29Z

1

You can try something like this:

jsonData.forEach(eachArray => {
   eachArray.sort( (aob, bob) => {
         if( aob.date_start < bob.date_start ) {
           return 1;
         } else if(aob.date_start > bob.date_start ) {
             return -1;
         }
         return 0;
   });
});

edited Oct 8, 2017 at 15:42

answered Oct 8, 2017 at 15:35

asmmahmud

5,0742 gold badges42 silver badges53 bronze badges

Collectives™ on Stack Overflow

How to sort by JSON element

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related