Camel case string extension for swift

CamelCaseString.swift

extension String {
    // Camel case
    var camelCased: String {
        return self.characters.split{$0 == " "}.map(String.init).map{$0.capitalizedString}.joinWithSeparator(" ")
    }
    
    var capitalizeFirst:String {
        var result = self
        result.replaceRange(startIndex...startIndex, with: String(self[startIndex]).capitalizedString)
        return result
    }
}