Type Any has no subscript members json Swift 3

问题

I have this code:

let subjectAbbreviation = JSON?["data"]??["subject"]??["abbr"] as? String

Swift 3 complains:

Type Any has no subscript members

How would I unwrap this? I know I can use (JSON as? AnyObject) seems kind of messy though.

回答1:

You need to specify the type of your json to [String: Any] so try like this.

if let jsondata = json as? [String: Any], let data = jsondata["data"] as? [String: Any], let subject = data["subject"] as? [String: Any], let addr = subject["subject"] as? String {
    print(addr)
}

来源：https://stackoverflow.com/questions/39740847/type-any-has-no-subscript-members-json-swift-3