I have a JSON string like this
{"3560" : "something", "3980" : "something", "4580" : "1456"}
How to get data above as "key -> value" in javascript(jquery) ?
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2 Answers
var obj = JSON.parse(jsonString);
Now you can access obj["3560"], etc.
Or iterating:
for(var key in obj) {
// do something with obj[key]
}
2 Comments
Anders
is JSON.parse now included in every browser?
Felix Kling
@Anders: Actually I'm not 100% sure in which browsers it is supported, but it can always be included: github.com/douglascrockford/JSON-js I would not include jQuery for only parsing JSON. But if it is used anyway, then
$.parseJSON() should be preferred.var obj = jQuery.parseJSON(jsonObj);
Then you could access the data like obj.3560 or obj.3980 or iterate over them using a for-in loop like in Felix Kling's answer.
This requires jquery 1.4.1 or later to work.
6 Comments
Nick
If I use obj.3560, obj.3980 etc. I will get only the "value" of 3560, 3980. I`m trying to get and the key (3560, 3980) also
amurra
@John - They will be contained in the obj var. This was just an example on how to access the value after you parse it. Do a for-in loop and you will be able to access the keys as well.
Felix Kling
obj.3560 should not work as a number is not a valid identifier.... does this really work for you?Felix Kling
@John: Is the for loop in my answer not example enough?
Nick
@ Felix Kling: With the example you showed I got only values, but not the keys
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