How to use a String variable as key in a JSON object [duplicate]

Question

Possible Duplicate:
Is a way that use var to create JSON object in key?

I would like to construct a JSON object in JavaScript by using the value of a (String) variable as the key. But what I got is the name of the variable as the key.

example.js:

function constructJson(jsonKey, jsonValue){
   var jsonObj = { "key1":jsonValue, jsonKey:2};
   return jsonObj;
}

The call

constructJson("key2",8);

returns a JSON -> {"key1":8,"jsonKey":2} but I would like to have {"key1":8,"key2":2}.

Does anyone know how to achieve this? seems like a simple problem but I cannot find the solution.

sorry for duplicate question... found awnser here: stackoverflow.com/a/882749/1005072 — rontron
– rontron, Commented Nov 20, 2012 at 13:22

AlexStack · Accepted Answer · 2012-11-20 13:35:00Z

52

function constructJson(jsonKey, jsonValue){
   var jsonObj = {"key1": jsonValue};
   jsonObj[jsonKey] = "2";
   return jsonObj;
}

edited Nov 20, 2012 at 13:35

AlexStack

17.5k22 gold badges78 silver badges109 bronze badges

answered Nov 20, 2012 at 13:19

Anton Morozov

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