Mutability and immutability are properties of certain classes of object. For example, these are immutable—once created they cannot be changed: numeric types (int and float) Booleans strings tuples ...

Take advantage of init-only setters to make configuration options immutable in ASP.NET Core MVC 5 to avoid unnecessary assignments and eliminate opportunities for errors.

Immutable objects are highly desirable . Because an immutable object's state cannot be changed, they are particularly useful in concurrent environments . Immutable options can simplify code and ...