is it possible to create a generic closure in Swift?

Question

func myfunc(i:T) -> T {
    return i
}

is it possible to make this generic function a closure?

let myfunc = {          


        

Answer 1

Probably you need something like this.

Type declaration:

typealias ResultClosure = (ResultCode, String?, T?) -> Void

Function declaration:

func loginUser(userName: String, password: String, resultHandler: ResultClosure?)

Usage:

    NetConnector.shared.loginUser(userName: userName ?? "", password: password ?? "") { (code, message, data) in
        self.display?.unlockScreen()
        if code == .success {
            if let activeToken = data {
                AppData.shared.userToken = activeToken
            }
            self.display?.showHome()
        } else {
            self.display?.showError(errorMessage: message)
        }
    }