javascript storing key value inside object

Question

I have some json strings that look like that:

var TheJson = "{Key:[array of objects]}"

Key is actually a date and the json contains arrays of objects. I want to add this object to another object HistoryOfData, sort of like the .push method on arrays. Basically, I want the HistoryOfData object to have key value nested objects where the keys are dates and the values are arrays of data.

How do I push an object into another object?

The JSON string would have to be parsed into a real Object first. (see JSON.parse). — James M
– James M, Commented Jun 11, 2012 at 18:46
@JamesMcLaughlin: indeed, but once I have the object from json, how do I push it to HistoryOfData? — frenchie
– frenchie, Commented Jun 11, 2012 at 18:49

Paul · Accepted Answer · 2012-06-11 18:49:39Z

1

Just set them in the new object. Example:

var json1 = '{"06/08/2012": [{}, {"x": 1}, {"y": 2}, {"x": 3, "y": 4}]}';
var json2 = '{"06/10/2012": [{}, {"x": 5}, {"y": 6}, {"x": 7, "y": 8}]}';
var new_obj = {}, temp;

temp = JSON.parse(json1);
for(key in temp)
    new_obj[key] = temp[key];

var temp = JSON.parse(json2);
for(key in temp)
    new_obj[key] = temp[key];

console.log(new_obj); // Has two keys, each key is a date 
                      // and the values are Arrays of objects

answered Jun 11, 2012 at 18:49

Paul

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Comments

meetamit · Accepted Answer · 2012-06-11 18:47:17Z

0

for(var key in JSON.parse(TheJson)) {
  HistoryOfData[key] = TheJson[key]
}

JSON.parse is needed if TheJson is really still a String, and hasn't yet been turned into a JS Object.

answered Jun 11, 2012 at 18:47

meetamit

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