javascript sort array by inside data

Question

I need to sort an array by his inside first element data . my array looks something like that

arr = [[0,"lol"][6,"yo"][5,"comon"]]

After the sorting I need it to be like that :

[[0,"lol"][5,"comon"][6,"yo"]]

0 , 5 , 6 suppose to order the cells and they data they have is irrelevent. Thanks.

@OriGavrielRefael I updated my answer, made it more effective... ;) — Givi
– Givi, Commented Jul 10, 2013 at 13:01

Givi · Accepted Answer · 2013-07-10 13:41:00Z

1

You can try something like this... Live Demo

I made some changes...

Corrected the mistake :
// before that I'm checking arrays and not a values of it... (!isNaN(a) && !isNaN(b)) to (!isNaN(a[0]) && !isNaN(b[0]))
and to ignore case...
aa = a[0].toString().toLowerCase(); bb = b[0].toString().toLowerCase();

===========================================================

arr.sort(function (a, b) {
    var aa, bb;
    if (!isNaN(a[0]) && !isNaN(b[0])) {
        return a[0] - b[0];
    } else {
        aa = a[0].toString().toLowerCase();
        bb = b[0].toString().toLowerCase();
        return (aa == bb) ? 0 : (aa < bb) ? -1 : 1;
    }
});

edited Jul 10, 2013 at 13:41

answered Jul 10, 2013 at 11:05

Givi

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2 Comments

nnnnnn Over a year ago

I didn't downvote, but in my opinion testing for non-numeric is overkill given the input was specified as numeric. Still, I guess +1 for showing a way to handle non-numerics...

Givi Over a year ago

@nnnnnn I updated my answer, making it a more versatile... ;)

z1m.in · Accepted Answer · 2013-07-10 11:03:16Z

1

jsfiddle Link

var arr = [[0,"lol"],[6,"yo"],[5,"comon"]];
arr.sort(function(a, b) {
   return a[0] - b[0];
});

edited Jul 10, 2013 at 11:03

answered Jul 10, 2013 at 10:49

z1m.in

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2 Comments

nnnnnn Over a year ago

It needs to be return a[0] - b[0]; the sort function isn't supposed to return a boolean.

z1m.in Over a year ago

@OriGavrielRefael Yes, it will be better.

Ja͢ck · Accepted Answer · 2013-07-10 11:12:19Z

1

Use this code to sort your array..

var arr = [[0,"lol"],[6,"yo"],[5,"comon"]];

arr.sort(function(a, b) {
    if (a[0] == b[0]) {
        return 0;
    } else {
        return a[0] < b[0] ? -1 : 1;
    }
});

edited Jul 10, 2013 at 11:12

Ja͢ck

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answered Jul 10, 2013 at 11:09

naveen

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