Using SwiftyJSON how would I parse the following JSON array into a Swift [String]?
{ "array": ["one", "two", "three"] } I have tried this code, but it doesn't work for me:
for (index: String, obj: JSON) in json["array"] { println(obj.stringValue) } What would be the best way to handle this? Thank you.
{ "myArray": ["one", "two", "three"] } Using SwiftyJSON, you can get an array of JSON objects with:
var jsonArr:[JSON] = JSON["myArray"].arrayValue Functional programming then makes it easy for you to convert to a [String] using the 'map' function. SwiftyJson let's you cast string type with subscript '.string'
var stringArr:[String] = JSON["myArray"].arrayValue.map { $0.stringValue} 
map closure?
JSON["myArray"].arrayValue.map { "\($0)" }.
JSON["myArray"].arrayValue.map { $0.stringValue }SwiftyJSON lets you extract a String? using $0.string or a non optional String using stringValue with a default empty String value if the type doesn't match.
If you want to be sure to have an array of String with non false positives, use :
var stringArray = self.json["array"].array?.flatMap({ $0.string })
or in Swift 4.1
var stringArray = self.json["array"].array?.compactMap({ $0.string })
You can also replace self.json["array"].array by self.json["array"].arrayValue to have a [String] result instead of [String]?.
You have a Dictionary which holds an Array which holds Strings. When you access a value in the Dictionary, it returns a simple Array of Strings. You iterate it like you would any array.
for obj in json["array"] { println(obj.stringValue) } Simply do this:
for stringInArray in json["array"]{ let value = stringInArray.1.stringValue } 