Xcode 8.2 • Swift 3.0.2

Xcode 8.2 • Swift 3.0.2

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var wv: UIWebView!
    override func viewDidLoad() {
        super.viewDidLoad()
        load***(videoID: "oCm_lnoVf08")
    }
    func load***(videoID:String) {
        guard
            let ***URL = URL(string: "https://www.***.com/embed/(videoID)")
            else { return }
        wv.loadRequest( URLRequest(url: ***URL) )
    }
}

Xcode 7.3.1 • Swift 2.x

Xcode 7.3.1 • Swift 2.x

import UIKit

class ViewController: UIViewController {
    // create an outlet for your webview 
    @IBOutlet weak var wv: UIWebView!
    override func viewDidLoad() {
        super.viewDidLoad()
        // load your you tube video ID
        load***(videoID: "oCm_lnoVf08")
    }
    func load***(videoID videoID:String) {
        // create a custom ***URL with the video ID
        guard
            let ***URL = NSURL(string: "https://www.***.com/embed/(videoID)")
            else { return }
        // load your web request
        wv.loadRequest( NSURLRequest(URL: ***URL) )
    }
}