How composition and inheritance work for types | Smart Go

The video tutorial explains Go's type system, focusing on inheritance and composition. It demonstrates creating structs and methods, showing how Go uses composition over inheritance. The tutorial covers method overriding, behavior inheritance, and using interfaces for flexible function inputs. It emphasizes separating behaviors from structures and using methods specific to each type.

What is the primary mechanism Go uses instead of inheritance?

• Composition

• Polymorphism

• Abstraction

• Encapsulation

In the example provided, what additional field does the 'Actor' struct have besides 'Person'?

• IMDb

• Age

• Role

• Salary

How does Go determine which method to invoke when a struct is composed of another struct?

• It randomly chooses a method

• It invokes the method of the inner struct if it exists

• It always invokes the method of the outer struct

• It requires explicit method calls

What is the purpose of creating an interface in Go?

• To define a new data type

• To allow functions to operate on multiple types

• To enforce data encapsulation

• To improve code readability

What must a function in Go do to operate on different types using an interface?

• Change its return type

• Accept any type as input

• Use type assertions

• Implement the interface methods