CODEWITHSUNDEEP
javascriptarrays
Aditya Jain
Aditya Jain

Reputation: 1095

Array of Array(containing object) in Javascript

I am trying to create a Array of Array containing objects,

Here is my code,

var objA = new Array();

function myFunction(){
     objA ['1'] = new Array();
     objA ['1'].push({'bird':'parrot','animal':'rabbit'});
     var item = objA ['1'];
     alert(item['bird']);
}

Now ideally above code should alert 'parrot', but instead I get 'undefined'.
What am I doing wrong?

Upvotes: -1

Views: 94

Answers (3)

I29
I29

Reputation: 686

Always console.log(anything) for better understanding of the object. The following change was needed.

var item = objA ['1'][0];

http://jsfiddle.net/rpnzG/

Upvotes: 1

voithos
voithos

Reputation: 70552

You set the attribute to a new array:

objA ['1'] = new Array();

So, of course, when you retrieve it, you're getting back an array.

var item = objA ['1'];

Arrays don't have a bird attribute. The first item in the array does, though.

alert(item[0]['bird']);

Upvotes: 2

techfoobar
techfoobar

Reputation: 66663

You should use:

var item = objA ['1'][0];

When you do objA ['1'].push(..) you are appending an item to the array objA ['1'] - whose items should be referenced by index like objA ['1'][0], objA ['1'][1] etc..

Upvotes: 2

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