LINQ If .Any matches .Any

Question

I have 2 string arrays, and I would like to return if any of them exists in _authRole array. How is that done?

 string[] _userRoles = userdata.Split(',');

 string[] _authRoles = AuthRoles.Split(',');


 bool isAuthorized = _authRoles.Any(_userRoles ??);

/M

Answer 1

If what you want is to determine if _authRoles and _userRoles have at least one common item, then use:

bool isAuthorized = _authRoles.Intersect(_userRoles).Any();

You can also query the result of Intersect in any other way you choose.