Transform array of objects into an object

Question

I want to iterate an array of objects to create one object, the properties of which are named for the current object in the iteration and the values of which use data from the current.

$.each(data, function(idx, obj) {
    baseLayers[idx] = new Array();
    baseLayers[idx][obj.name] = new L.TileLayer(obj.url, {maxZoom: 18, id: obj.key, attribution: mbAttr});
});

at the end, I want to get result an object like this

baseLayers = {
        'Map Box': new L.TileLayer('https://{s}.tiles.mapbox.com/v3/{id}/{z}/{x}/{y}.png', {maxZoom: 18, id: 'examples.map-i875mjb7', attribution: mbAttr}),
        'OSM': new L.TileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {maxZoom: 18, attribution: mbAttr})
};

I just noticed, after $.each block when I tried to get length of baseLayer[0] it gives as 0 but, it has key baseLayers[0]['Map Box'] — Muaaz Khalid
– Muaaz Khalid, Commented Feb 28, 2015 at 16:25
JSON is a string. There is no JSON in this post. After JSON has been deserialized into a data structure, your question is about working with those structures, not JSON. — JAAulde
– JAAulde, Commented Feb 28, 2015 at 16:49

Oleksandr T. · Accepted Answer · 2015-02-28 16:24:11Z

2

Try this

var baseLayers = {}
$.each(data, function(idx, obj) {
    baseLayers[obj.name] = new L.TileLayer(obj.url, {maxZoom: 18, id: obj.key, attribution: mbAttr});
});

answered Feb 28, 2015 at 16:24

Oleksandr T.

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Comments

charlietfl · Accepted Answer · 2015-02-28 16:27:09Z

1

Without seeing what data looks like I believe you want:

var baseLayers = {};
$.each(data, function(idx, obj) {       
    baseLayers[obj.name] = new L.TileLayer(obj.url, {maxZoom: 18, id: obj.key, attribution: mbAttr});
});

You are trying to add an extra level which is not shown in your expected output

answered Feb 28, 2015 at 16:27

charlietfl

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1 Comment

Muaaz Khalid Over a year ago

yes, there was an extra level just removed and it works. thanks!

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