Json string values in javascript

Question

I have following JSON string in a global variable in Javascript

var domains = {
    "DomID00001": {
        "ID":"DomID00001",
        "Name":"Testdomein1"
    },
    "DomID00002": {
        "ID":"DomID00002",
        "Name":"Testdomein2"
    }
};

What is the best way to retrieve the values from this JSON string and be able to use them in Javascript individually?

If I just alert the domains var it says = [object Object]

That's not a JSON string, it's a JavaScript object. You access it like any other JavaScript object. — rid
– rid, Commented Dec 13, 2013 at 8:53
Objects cannot be alerted. So console it, like console.log(domains) — Praveen
– Praveen, Commented Dec 13, 2013 at 8:53
There is no JSON in your example anywhere in sight. At first I rejoiced - somebody said JSON string - but then you have an object. Usually people make the opposite mistake, they have a string and claim it to be an object... oh and I edited your example, because if you write it like I did you can see its structure much better. — Mörre
– Mörre, Commented Dec 13, 2013 at 8:54

Sergio · Accepted Answer · 2013-12-13 08:53:46Z

7

Using alert() will not show you objects, this is one of the big advantages of the console. Check this fiddle and use the console (pressing F12 on your browser). Then you understand how to refer to what is inside that object.

var domains = {"DomID00001":{"ID":"DomID00001","Name":"Testdomein1"},"DomID00002":{"ID":"DomID00002","Name":"Testdomein2"}};

console.log(domains);
console.log(domains.DomID00001);
console.log(domains.DomID00001.ID);

answered Dec 13, 2013 at 8:53

Sergio

28.9k11 gold badges90 silver badges132 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Niet the Dark Absol Over a year ago

I'm afraid I don't see how this answers the question... Maybe I'm just misunderstanding the question... or your answer... =_=

Sergio Over a year ago

@NiettheDarkAbsol, I think both your (which I upvoted alone apparently) and my answer give some light into how to retrieve data from the object. Now we both have to wait if OP already knew about object property /values and if some questions still are unanswered.

Filip Huysmans Over a year ago

Also interesting, much gratitude for the help. I looked into this and indeed gave some insight on how to do things. But after all I went with the Dark Absols solution below. Still upvotes this.

Niet the Dark Absol · Accepted Answer · 2013-12-13 08:55:37Z

1

Since the keys are variable, you should probably use a for..in loop:

for( domid in domains) if( domains.hasOwnProperty(domid)) {
    console.log(domid,domains[domid].ID,domains[domid].Name);
}

answered Dec 13, 2013 at 8:55

Niet the Dark Absol

326k86 gold badges480 silver badges604 bronze badges

1 Comment

Filip Huysmans Over a year ago

I used this approach in order to retrieve the values. Thanks for the help.

Ringo · Accepted Answer · 2013-12-13 09:03:08Z

1

Try this:

var domains = {"DomID00001":{"ID":"DomID00001","Name":"Testdomein1"},"DomID00002":{"ID":"DomID00002","Name":"Testdomein2"}};

var strName1 = domains.DomID00001.Name;
var ID1 = domains.DomID00001.ID;
alert('Name: ' + strName1 + ' - ID: ' + ID1);

answered Dec 13, 2013 at 9:03

Ringo

3,9873 gold badges25 silver badges38 bronze badges

2 Comments

Filip Huysmans Over a year ago

Works but too static for what I need. This into a for loop and perfecto ;D still +1 thanks!

Ringo Over a year ago

I don't think for .. in is good about speed, you know! Just try something like JSON.parse(), stringify() ...etc. Thank you for voteup

Collectives™ on Stack Overflow

Json string values in javascript

3 Answers 3

3 Comments

1 Comment

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

3 Comments

1 Comment

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related