how to create a multi dimensional array in javascript inside a jquery each loop? - Stack Overflow

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I have this example:

var name;
var id;
var array = []; 

$.each(data, function(index, element) {
name = element.name;
id = element.id;
array[id] = name;
<a href="#" onClick="myFunction(array)">send</a>
console.log(array);
});

In this case .each will iterate 5 times and id will bee 1, 2, 3, 4, 5 and name will change to five names

i would like to create a multidimensional array or an object that will look like this:

[1:name1] for the first iteration
[2:name2] for the second on
...

the pass each pair of values to the myFunction function and inside that function to have access to the array values:

function myFunction(array){ // alert the key and value }

Any ideas how can I acplish this scenario?

I have this example:

var name;
var id;
var array = []; 

$.each(data, function(index, element) {
name = element.name;
id = element.id;
array[id] = name;
<a href="#" onClick="myFunction(array)">send</a>
console.log(array);
});

In this case .each will iterate 5 times and id will bee 1, 2, 3, 4, 5 and name will change to five names

i would like to create a multidimensional array or an object that will look like this:

[1:name1] for the first iteration
[2:name2] for the second on
...

the pass each pair of values to the myFunction function and inside that function to have access to the array values:

function myFunction(array){ // alert the key and value }

Any ideas how can I acplish this scenario?

• javascript
• jquery
• arrays
• multidimensional-array
• each

Share Improve this question Follow edited Jan 25, 2012 at 10:05 gdoron 150k5959 gold badges302302 silver badges371371 bronze badges asked Jan 25, 2012 at 10:03 PatrioticcowPatrioticcow 27.1k7676 gold badges221221 silver badges340340 bronze badges 2

• The first code sample has a bunch of HTML suddenly in the middle of it and won't parse. Can you clarify what you're trying to do? – T.J. Crowder Commented Jan 25, 2012 at 10:11
• @Patriotccow - Considering the first item of your "inner-array" acts as an identifier, you might want to look into associative arrays instead of multi-dimensional. Alternatively, since you're using numbers starting with 1, use a standard single-dimensional array and just ignore the zero-indexed item. – Goran Mottram Commented Jan 25, 2012 at 10:13

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1 Answer 1

Sorted by: Reset to default 5

It's not clear what you're trying to do, but if you want each entry in array to be an array containing the values of the id and name, you can change this line:

array[id] = name;

to

array[id] = new Array(id, name);

But I probably wouldn't use an array for that, I'd probably just use an object:

array[id] = {id: id, name: name};

Then you can access it like this:

x = array[id].name;

In fact, does array really need to be an array at all? If not, just make it an object:

data = {};

Make id the key and name the value:

data[id] = name;

And this is how you loop it:

function myFunction(data) {
    var id, name;

    for (id in data) {
        name = data[id];
        alert("id is " + id + ", name is " + name);
    }
}

With a plain object like that, there's no need, but if the object you're looping may have a prototype behind it, you'd want to only look at the object's own properties:

function myFunction(data) {
    var id, name;

    for (id in data) {
        if (data.hasOwnProperty(id)) {
            name = data[id];
            alert("id is " + id + ", name is " + name);
        }
    }
}

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