What are the differences between structs and interfaces in Go?

What are the differences between structs and interfaces in Go?

In Go, structs are used to define data structures, while interfaces define a contract for behavior. Structs can hold data, whereas interfaces specify methods that a type must implement.

Can you give me an example of a struct and an interface?

Sure! A struct could be type Person struct { Name string; Age int }, and an interface could be type Speaker interface { Speak() string }.

How do I implement an interface in a struct?

To implement an interface, you just need to define the methods specified in the interface in your struct. For example, if Person implements Speaker, you would add a Speak method to Person.

What are some use cases for using interfaces?

Interfaces are great for defining behaviors that can be shared across different types, enabling polymorphism and making your code more flexible.