Resharper: vars

Question

Why does Resharper want you to change most variables to var type instead of the actual type in the code?

Answer 1

By default, it will "green squiggle" declarations of this type :

Person p = new Person();
^^^^^^

Because of the repetition.

It will also suggest (small green underscore) var when it can be inferred :

Person p = repository.GetPerson(1);
¯¯¯

In this case it can be infered because of the return type of the GetPerson method.

As stated by Jon Skeet, you can disable these suggestions in resharper's options.