instantiateFromStoryboard.swift

// Swift 3

import UIKit

class TestViewController: UIViewController {

    var text: String!

    static func create(with text: String) -> Self {
        let vc = instantiateFromStoryboard()
        vc.text = text
        return vc
    }

    override func viewDidLoad() {
        super.viewDidLoad()
    }
}

extension UIViewController {

    static func instantiateFromStoryboard() -> Self {
        return instantiateFromStoryboardHelper()
    }

    private static func instantiateFromStoryboardHelper<T>() -> T {
        let name = String(describing: self)
        let storyboard = UIStoryboard(name: name, bundle: nil)
        guard let controller = storyboard.instantiateInitialViewController() as? T else {
            preconditionFailure("'\(name)': instantiateInitialViewController failed.")
        }

        return controller
    }
}