Sorting array by date and time in same time?

Question

I am building shedule app, so i need to sort items by date and time in same time. Like you see in example i can only filter hours and minuts and that works, but i need to filter dates too

I am storing date in datebase like YYYY-MM-DD and time by hours and minuts like string for example: hours:"08",minuts:"25".

 this.ord3ref.on("child_added", data => {
      this.ord3.push({
        key: data.key,
        data: data.val()
      });
      this.ord3.sort(
        (a, b) => a.data.hours- b.data.hours || a.data.minuts- b.data.minuts
      );
    });

like you see on image it sorts array by hours and minuts, but its need to be sorted by dates first, than with hours and minuts...

can you give one example of the data object? not sure I fully understand how it looks — Shay Moshe, Feb 12 '19 at 18:03
If a.data and b.data are both Date object, you can do a.data > b.data — ControlAltDel, Feb 12 '19 at 18:11
maybe t his will help https://stackoverflow.com/a/2784265/5066625 — Miroslav Glamuzina, Feb 12 '19 at 18:30

score 1 · Accepted Answer · answered Feb 12 '19 at 18:39

If the data contains a key/value for date then you should be able to just substitute your sort function with this:

this.ord3.sort(
    (a, b) => {
        var dateA = new Date(a.data.date).valueOf();
        var dateB = new Date(b.data.date).valueOf();
        return a.data.hours - b.data.hours || a.data.minuts - b.data.minuts || dateA - dateB;
    }
);

javascript Date objects can be created from the date strings in the format YYYY-MM-DD.

The .valueOf() method returns the number of milliseconds from UTC time - see MDN's explanation of it.

Big tnx. Now it sort by date, than i same day it sort by hours and minuts, ty ty!!! — Viktor Molnar, Feb 12 '19 at 20:32

Sorting array by date and time in same time?

1 Answers1