define an object in javascript

Question

I am new to javascript.
I want to have an object with this structure.

Users = {
    User1 : {
        "name" : "name",
        "id"   : "123"
    }
    User2 : {
        "name" : "name",
        "id"   : "123"
    }
}

so I should define Users like this:

 var Users = {};

How can I add new User to Users? and How can I read and write from users inside Users object like this:

 // reading
 User1_name = Users.User1.name;

 // writing
 Users.User1.name = "new name";

It is pretty much valid code. Just, as mentioned, a comma is missing. — Sirko
– Sirko, Commented Nov 1, 2013 at 10:15

CD.. · Accepted Answer · 2013-11-01 10:12:30Z

3

Your code is fine (except the missing comma @Philipp pointed), but you can use an array too:

var users = [
    {
        "name" : "name",
        "id"   : "123"
    },
    {
        "name" : "name",
        "id"   : "123"
    }
];

var userName = users[0].name;

users[0].name = "new name";

answered Nov 1, 2013 at 10:12

CD..

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1 Comment

Roko C. Buljan Over a year ago

+1 This is a better way to handle users in an easy enumerable way.

Philipp Gayret · Accepted Answer · 2013-11-01 10:23:16Z

2

You can define users like this, you are just missing a comma

Users = {
    User1 : {
        "name" : "name",
        "id"   : "123"
    } <--
    User2 : {
        "name" : "name",
        "id"   : "123"
    }
}

Should be ( with var added for clarity )

var Users = {
    User1 : {
        "name" : "name",
        "id"   : "123"
    },
    User2 : {
        "name" : "name",
        "id"   : "123"
    }
}

Reading and writing can be done the way you described.

To add a new user, you could do something like this

Users["User3"] = {
    "name" : "name3",
    "id"   : "1234"
}

edited Nov 1, 2013 at 10:23

answered Nov 1, 2013 at 10:13

Philipp Gayret

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2 Comments

Pars Over a year ago

User3 comes from php, so it can be anything. is it valid to be var username = 'somename' And Users.username = { 'name' : 'name', 'id' : '123' } ?

CD.. Over a year ago

Users[username] = { 'name' : 'name', 'id' : '123' }

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