UITextView extensions

UITextViewExtensions.swift

extension UITextView {
     var currentWord: String? {
        return currentWordRange.map({ String(text[$0]) })
    }
    
    var currentWordRange: Range<String.Index>? {
        let regex = try! NSRegularExpression(pattern: "\\S+$")
        let textRange = NSRange(location: 0, length: selectedRange.location)
        if let range = regex.firstMatch(in: text, range: textRange)?.range {
            return Range(range, in: text)
        }
        return nil
        
    } 
}