parse values from javascript object

Question

I see there is a problem to get a String name from JSON object's name. I need to parse this kind on JSON response from server.

var response = {
  hopaopGmailsjIpW: {
    GmailsjIpW_totalEmails_count: 133,
    GmailsjIpW_state: 1
  },
  hopaopGmail4y4yu: {
    Gmail4y4yu_totalEmails_count: 156,
    Gmail4y4yu_state: 1
  }
}

It is not an Array, but the object with inner objects. i need to parse an inner ojects name and add additional values to each object.

i want be able to do something like this:

for(var i =0; i < response.length; i++){
  response[i].username = parseUsernameFromString(response[i]);
  response[i].service = parseServiceFromString(response[i]);
  response[i].id = parseIdString(response[i]);
}

(and also state for each task)

So the question is: What is the best way to make it?

UPDATE this is exactly what i have for now:

for(var key in response){
    if(stringContains(response[key], "Gmail")) { response[key].service = "Gmail";}
        console.log("task name: "+ response[key].service);
}
function stringContains(originalString, searchString){
        if(originalString.indexOf(searchString) > -1){
            return true
        }
            else return false;
}

Your first block of code is not JSON, nor is it JavaScript. You'd need to write a custom parser for it (start reading [here](https://en.wikipedia.org/wiki/Lexical_analysis)). It would be better to fix the server so the response is actually JSON. — Quentin, Jun 24 '16 at 09:53
The thing is it is a request from some implementation of dataCache on server side, changing server part is too much work, doesn't worth. also i have this situation only in one place in my app. — user1935987, Jun 24 '16 at 09:55
Are you asking how to loop through the object, or how to write the `parseUsernameFromString` etc functions? The question isn't very clear. — JJJ, Jun 24 '16 at 10:00
That structure is just truly, truly bizarre. It really needs fixing. The properties of the inner objects should have consistent names, for one. Basic principles, people. — T.J. Crowder, Jun 24 '16 at 10:07
'i need to parse an inner ojects name and add additional values to each object.' whats what i asking. The structure of objects is like this because it is an object drom datacache in back end which is working with multithreaded async tasks and each group, user, task need to have their id's.. anyway thats not the issue. — user1935987, Jun 24 '16 at 10:22

Praveen Kumar Purushothaman · Accepted Answer · 2016-06-24T10:40:47.223

2

For walking through Objects, you need to use for ... in loop.

The real problem is: There's a , missing in your code. See the fixed working snippet:

Snippet

var response_Parsed = {
  hopaopGmailsjIpW: {
    GmailsjIpW_totalEmails_count: 133,
    GmailsjIpW_state: 1,
    service: 'Gmail',
    username: 'hopaop',
    id: 'sjIpW'
  },
  hopaopGmail4y4yu: {
    Gmail4y4yu_totalEmails_count: 156,
    Gmail4y4yu_state: 1,
    service: 'Gmail',
    username: 'hopaop',
    id: '4y4yu'
  }
};
for (id in response_Parsed) {
  console.log("----");
  if (id.indexOf("Gmail") > -1) {
    console.log("We have Gmail: " + id);
    console.log("UniqueName:    " + id.replace("hopaopGmail", ""));
    console.log("Username:      " + response_Parsed[id].username);
    console.log("Email Count:   " + response_Parsed[id][id.replace("hopaop", "") + "_totalEmails_count"]);
  }
  else
    console.log("We don't have Gmail: " + id);
}

And also the right way to enumerate the through the keys of the objects, is by using Object.keys.

edited Jun 24 '16 at 10:40

answered Jun 24 '16 at 09:54

Praveen Kumar Purushothaman

164,888
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Is there anything else I should add or correct to make this answer a better one? – Praveen Kumar Purushothaman Jun 24 '16 at 09:58
i can't know the exact values of `hopaopGmail4y4yu` for example because it include generic ID. Yes, comma was missing. – user1935987 Jun 24 '16 at 09:58
sorry, but this is not the answer. – user1935987 Jun 24 '16 at 09:58
@user1935987 Now you can. Did you check my snippet, it shows you in the console as well. Is that what you are expecting? – Praveen Kumar Purushothaman Jun 24 '16 at 09:58
`console.log(response[id].GmailsjIpW_totalEmails_count);` i can't do make there because i don't know if there `GmailsjIpW_totalEmails_count` – user1935987 Jun 24 '16 at 09:59
@user1935987 You wanna get the count right, updating. – Praveen Kumar Purushothaman Jun 24 '16 at 09:59
i don't need the count, i need to parse object's name – user1935987 Jun 24 '16 at 10:00
ex: ` hopaopGmail4y4yu` `username: hopaop` `service: gmail` `id: 4y4yu` – user1935987 Jun 24 '16 at 10:00
@user1935987 Check now – Praveen Kumar Purushothaman Jun 24 '16 at 10:01
@user1935987 You are looking for: `console.log(response[id][id.replace("hopaop", "") + "_totalEmails_count"]);` – Praveen Kumar Purushothaman Jun 24 '16 at 10:01
1

@user1935987: You just have to apply what Praveen showed you not just to the outermost object (as he has), but then *also* to the objects its properties refer to. It's just applying the same principle. – T.J. Crowder Jun 24 '16 at 10:02
@user1935987 Are you convinced or still not yet? – Praveen Kumar Purushothaman Jun 24 '16 at 10:05
i can't operate with `hopaopGmailsjIpW` as with string. isn't it? – user1935987 Jun 24 '16 at 10:05
@user1935987 Did you see the solution I posted? The comment I made a few seconds ago? – Praveen Kumar Purushothaman Jun 24 '16 at 10:05
because it's what i had before this question: ` for (var element in key){ if(stringContains(element, "Gmail")) {console.log("Key contains string Gmail");} } ` and i get errors because `string.indexOf()` don't work on the key – user1935987 Jun 24 '16 at 10:06
@user1935987 You are making no sense. I don't understand what exactly you are expecting. – Praveen Kumar Purushothaman Jun 24 '16 at 10:07
just give me some time – user1935987 Jun 24 '16 at 10:07
@user1935987 Still didn't understand what you are expecting. – Praveen Kumar Purushothaman Jun 24 '16 at 10:23
@T.J.Crowder Does anything make sense? – Praveen Kumar Purushothaman Jun 24 '16 at 10:23
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/115509/discussion-between-user1935987-and-praveen-kumar). – user1935987 Jun 24 '16 at 10:23
1

the problem was that i was parsing `response[key]` , but not the `key` – user1935987 Jun 24 '16 at 10:50

MattDiMu · Answer 2 · 2016-06-24T10:11:13.683

1

If the response is a String like you wrote, you should first parse the JSON-String into an Object (if you're using a library like jQuery, it's probably already a JSON, as this conversion is done by jQuery automatically):

var obj = JSON.parse(responseString);

Afterwards you may iterate through it like posted above:

for (var key in obj) {
    console.log("key", key, "value", obj[key]);
}

edited Jun 24 '16 at 10:11

answered Jun 24 '16 at 09:58

MattDiMu

4,873
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*Afterwards you may iterate through it like posted above* What's your answer good for then? `:)` – Praveen Kumar Purushothaman Jun 24 '16 at 10:06
@PraveenKumar Yes, my answer was some second later, so i added this sentence. Still it contains the JSON.parse part. – MattDiMu Jun 24 '16 at 10:09
@MattDiMu I was more interested on you removing that JSON Object. There's nothing like that. How do you say, "JavaScript Object Notation Object"? `:D` – Praveen Kumar Purushothaman Jun 24 '16 at 10:10

parse values from javascript object

2 Answers2