Re-order Json array by key value

Question

I have a contact list that is returned to me in this very long form. It is getting returned Based on order of entry (the field outside the first set of brackets, indented). The problem I'm having is I want it to order alphabetically by displayName. Since that is in it's own array inside of the main one I'm having trouble getting the full array to reorder by it. Can anyone figure this out? Thanks. Oh and it's got to be done in JS.

{
"0":
{"id":1,"rawId":null,"displayName":"Person 1","name":null,"nickname":null,"phoneNumbers":[{"type":"mobile","value":"phonenumb53534r","id":0,"pref":false}],"emails":null,"addresses":null,"ims":null,"organizations":null,"birthday":null,"note":null,"photos":null,"categories":null,"urls":null},
"1":
{"id":2,"rawId":null,"displayName":"Person 2","name":null,"nickname":null,"phoneNumbers":[{"type":"mobile","value":"phonenumber535345","id":0,"pref":false}],"emails":null,"addresses":null,"ims":null,"organizations":null,"birthday":null,"note":null,"photos":null,"categories":null,"urls":null},
"2":
{"id":3,"rawId":null,"displayName":"Person 3","name":null,"nickname":null,"phoneNumbers":[{"type":"mobile","value":"phonenumber47474","id":0,"pref":false}],"emails":null,"addresses":null,"ims":null,"organizations":null,"birthday":null,"note":null,"photos":null,"categories":null,"urls":null}, goes on for a couple hundred rows

These are object, not arrays. Objects do not have any set order .. do you want to store the nested objects inside of an array in order? — Explosion Pills
– Explosion Pills, Commented Feb 24, 2013 at 2:04

Explosion Pills · Accepted Answer · 2013-02-24 02:06:48Z

3

Objects in JavaScript are not ordinal by nature. If you have an array, you can work with that. Otherwise, you have to convert the outer part of the object into an array yourself:

var arrayOfObj = [];

for (item in obj) {
    if (obj.hasOwnProperty(item)) {
        arrayOfObj.push(obj[item]);
    }
}

If you can do that before you even get the JSON, so much the better. Once you have that, you can just use the normal array .sort method

arrayOfObj.sort(function (a, b) {
    if (a.displayName < b.displayName) {
        return -1;
    }
    else if (a.displayName > b.displayName) {
        return 1;
    }
    return 0;
});

http://jsfiddle.net/ZcM7W/

answered Feb 24, 2013 at 2:06

Explosion Pills

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Andrew Kirkegaard · Accepted Answer · 2013-02-24 02:12:55Z

0

You'll need to parse that responseText into JSON. But since it's returned as an object literal you'll have to convert it to an array. Then you can sort it with a custom comparator function.

var json = JSON.parse(response), 
data = [];

for (key in json) {
 data.push(json[key]);   
}

data.sort(function (a, b) {
    return a.displayName > b.displayName;
});

answered Feb 24, 2013 at 2:12

Andrew Kirkegaard

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