There’s no point in forcing the overhead of a method call for a method that always returns the same constant value. Even worse, the fact that a
method call must be made will likely mislead developers who call the method thinking that something more is done. Declare a constant instead.
This rule raises an issue if on methods that contain only one statement: the
return of a constant value.
Noncompliant Code Example
return 12; // Noncompliant
const int BestNumber = 12;
static readonly int BestNumber = 12;