It seems not easy to manipulate an array or dictionary?

[phu4ku]

for example, delete one item, append one item. the setter can change the whole array or dictionary. but how can i just manipulate an array or dictionary?

[ArtSabintsev]

Having the exact same issue.

[ArtSabintsev]

Figured it out! On your returned JSON object, just call the optional vars .array or .dictionary.

If your object is an array and you rightfully call .array, then you can use all the Array methods, like append. If it happens to not be an array, nil is returned, as it is an optional var.

Array Example

let json = JSON(data: data)
let array = json.array // Returns an [AnyObject]?, which means you'll get an [AnyObject] or nil

Dictionary Example

let json = JSON(data: data)
let dictionary = json.dictionary // Returns an [String: JSON]?, which means you'll get an [String: JSON] or nil

[artworkad]

@ArtSabintsev but array is immutable, you cannot append to it

[ArtSabintsev]

Then you can make a new immutable array and populate it with the data in the immutable array.

[alexhunsley]

I'm having the same problem. I just cannot get the JSON to update.

let wholeJSON: JSON = .... // my json tree
let dictObject: JSON = ... // some object from inside wholeJSON

 guard var myDict = dictObject.dictionary else {
     fatalError("Didn't find dict")
 }

 // modify the dict
myDict["a"] = "b"

// is this necessary? But even with this line below, still don't
// get the json updated
dictObject.dictionary = myDict

// the call below doesn't show any of my changes in the data
wholeJSON.rawData()