I have a JSON object:
var x: JSON = JSON([:])
x["1"].intValue = 1 //Correct
x["2"].arrayValue = [JSON("2")] //Error
x["3"].dictionaryValue = [3:JSON("3")] //Error
I am able to assign an integer to x, but I am not able to assign any JSON array or any JSON dictionary. What am I doing wrong and how do I solve it?
Assuming you originally wanted to assign an array of JSON objects:
// doesnt work
x["1"].arrayObject = [ JSON( ["1" : "2"] ), JSON( [ "3" : "4" ] )
Try this:
x["1"] = JSON( [ JSON( ["1" : "2"]), JSON( ["3" : "4"] ) ] )
Or:
x["1"] = [ JSON( ["1" : "2"]).object, JSON( ["3" : "4"] ).object ]
Should work at least for SwiftyJSON 2.3
As of today, the SwiftyJSON README.md tells you to use
json.array = [1,2,3,4]
but actually take a look at SwiftyJSON.swift under MARK: - Array, extension JSON. array and arrayValue are get only, you should instead use
json.arrayObject = [1,2,3,4]
which works if the array elements are native types. If you would like to assign a [JSON] to a JSON, that is, an array of JSON objects to a new JSON object try this
// Patch SwiftyJSON to support constructing a JSON out of [JSON]
extension JSON {
public init(_ jsonArray:[JSON]) {
self.init(jsonArray.map { $0.object })
}
}
and thus
json["subarray"] = JSON(someArrayOfJSON)
Try this:
var x = JSON([:])
x["1"] = 1
x["2"] = [2]
x["3"] = ["3":4]
println(x)
x["2"] = [2,3,4,5], isn't this working?x["2"] = [2,3,4,5], we can print x and see the array printed in the json. That doesn't mean it's now a JSON array?