Simple UITableView in Swift - unexpectedly found nil

Question

Pretty simple code:

func numberOfSectionsInTableView(tableView: UITableView?) -> Int {
    return 1
}

func tableView(tableView:UITableView!, numberOfRows         


        

Answer 1

Swift 5 In same storyboard two class are there Class A and Class B, Class B contains tableview outlet, when i tried to push Class A to Class B it's crashed and show tableView outlet nil.

In class A i did navigation like below code.

let classBObj = ClassB()
self.navigationController?.pushViewController(classBObj, animated: true)

Then i realised my mistake and used below code and it's work perfectly.

let storyboard = UIStoryboard(name: "Main", bundle: nil)
let classBObj = storyboard.instantiateViewController(withIdentifier: "ClassB") as! ClassB
self.navigationController?.pushViewController(classBObj, animated: true)