Generic type 'Array<T>' requires 1 type argument(s). - Angular2
solution 1:
clients: String[]; // if type cant be determined use 'any[]' doctors: String[];solution 2:
clients: Array<String>; // if type cant be determined use '<any>' doctors: Array<String>;
I have not used Angular2, but I believe the solution, since you know the type which the array is going to hold, is to use Array<String> instead of array on its own.
NOTE: what you could do is replace String with the angular2 typename for a string primitive.