Array under another array in javascript

Question

This is probably a fairly simple way to do it, but I ask since I did not find it on google.

What I want is to add an array under another.

var array = [];

array[0]["username"] = "Eric";
array[0]["album"] = "1";

Something like this, I get no errors in Firebug, it does not work. So my question is, how does one do this in javascript?

you should NOT use array as variable name since it can be confused with the Array object. — Boris Guéry
– Boris Guéry, Commented Dec 11, 2009 at 9:31
I only use "array" as a variable name, in this example here =) — eriksv88
– eriksv88, Commented Dec 11, 2009 at 9:40

leepowers · Accepted Answer · 2009-12-11 09:28:16Z

7

var a= [
 { username: 'eric', album: '1'},
 { username: 'bill', album: '3'}
];

answered Dec 11, 2009 at 9:28

leepowers

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4 Comments

eriksv88 Over a year ago

thx a lot! men vist du da ønsker å legge til flere i arrayet i ettertid da? I mitt tilfellet er det en loop

eriksv88 Over a year ago

I'm so sorry, was so happy for your reply, I wrote it in my language. What I would say is: thx a lot! but shown when you want to add more in the array later then? In my case it is a loop

roryf Over a year ago

var a = []; a.push({username: "foo", album: "3"})

Andrew Koper Over a year ago

This is an array that contains objects. He wants an array that contains arrays.

pramodc84 · Accepted Answer · 2009-12-11 09:30:16Z

1

try something like this

array[0] = new Array(2);
array[1] = new Array(5);

More about 2D array here

answered Dec 11, 2009 at 9:30

pramodc84

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Comments

Vincent Robert · Accepted Answer · 2009-12-11 15:45:12Z

0

You should get an error in Firebug saying that array[0] is undefined (at least, I do).

Using string as keys is only possible with hash tables (a.k.a. objects) in Javascript.

Try this:

var array = [];
array[0] = {};
array[0]["username"] = "Eric";
array[0]["album"] = "1";

or

var array = [];
array[0] = {};
array[0].username = "Eric";
array[0].album = "1";

or simpler

var array = [];
array[0] = { username: "Eric", album: "1" };

or event simpler

var array = [{ username: "Eric", album: "1" }];

edited Dec 11, 2009 at 15:45

answered Dec 11, 2009 at 9:34

Vincent Robert

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Comments

Marcelo De Zen · Accepted Answer · 2012-08-26 13:11:22Z

0

Decompose.

var foo = new Array();
foo[0] = {};
foo[0]['username'] = 'Eric';
foo[0]['album'] = '1';

edited Aug 26, 2012 at 13:11

Marcelo De Zen

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answered Dec 11, 2009 at 9:38

Boris Guéry

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