Youtube Video Id from URL - Swift3

Question

Basically I have a Youtube URL as string, I want to extract the video Id from that URL. I found some code in objective c that is as below:

NSError *error = NULL;         


        

Answer 1

Here is code to extract youtube video id from any youtube url: (Swift)

func extractYoutubeId(fromLink link: String) -> String {
        let regexString: String = "((?<=(v|V)/)|(?<=be/)|(?<=(\\?|\\&)v=)|(?<=embed/))([\\w-]++)"
        let regExp = try? NSRegularExpression(pattern: regexString, options: .caseInsensitive)
        let array: [Any] = (regExp?.matches(in: link, options: [], range: NSRange(location: 0, length: (link.characters.count ))))!
        if array.count > 0 {
            let result: NSTextCheckingResult? = array.first as? NSTextCheckingResult
            return (link as NSString).substring(with: (result?.range)!)
        }

        return ""
    }