Add to javascript associative array

Question

I want the following structure:

    var data={"users":[
    {
        "firstName":"Ray",
        "lastName":"Villalobos",
        "joined":2012
    },
    {
        "firstName":"John",
        "lastName":"Jones",
        "joined":2010
    }
    ]}

I want to be able to programatically add entries to it. Here is what I tried:

  var data = [];
   data.push({
     "firstName":"Johsssn",
     "lastName":"Jossnes",
     "joined":2010
   });

And what have you got trying? Error?

David Jashi
– David Jashi

2013-06-26 16:22:59 +00:00
Commented Jun 26, 2013 at 16:22 — David Jashi
– David Jashi, Commented Jun 26, 2013 at 16:22
yep,jcsanyi's solution solved it.

phpcoderx
– phpcoderx

2013-06-26 16:57:27 +00:00
Commented Jun 26, 2013 at 16:57 — phpcoderx
– phpcoderx, Commented Jun 26, 2013 at 16:57

jcsanyi · Accepted Answer · 2013-06-26 16:22:33Z

7

Your array is actually data.users, not data.
So use this instead:

var data = {users: []};
data.users.push({
  "firstName":"Johsssn",
  "lastName":"Jossnes",
  "joined":2010
});

answered Jun 26, 2013 at 16:22

jcsanyi

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1 Comment

Steven Wexler Over a year ago

This is how I'd do it. Also, you can use bracket notation (data["users"]) instead of dot notation (data.users).

Aguardientico · Accepted Answer · 2013-06-26 16:23:17Z

0

    var data = {users: []};
    data.users.push({
         "firstName":"Johsssn",
         "lastName":"Jossnes",
         "joined":2010
    });

answered Jun 26, 2013 at 16:23

Aguardientico

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Comments

Aleks G · Accepted Answer · 2013-06-26 16:23:39Z

0

Your data object contains one property, users, which is an array of users, so you need to push into it:

data.users.push({
    "firstName":"Johsssn",
    "lastName":"Jossnes",
     "joined":2010
});

answered Jun 26, 2013 at 16:23

Aleks G

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