From the course: Go for Developers: Practical Techniques for Effective Coding
Join today to access over 25,500 courses taught by industry experts.
Generic types - Go Tutorial
From the course: Go for Developers: Practical Techniques for Effective Coding
Generic types
- In addition to functions, types can also be generic. If we consider building a data store, we might define a generic type to represent a model. So here, we define a model interface that defines a constraint that all implementations of the model interface must satisfy. The model interface has a type constraint T, which is the constraints.Ordered constraint. This constraint is now available for use on the interfaces methods. For example, we can return type T from the ID method. Now, in order to implement the model interface, a type needs an ID method that returns a type listed in the ordered constraint. Let's create a new type User that implements the model interface. The ID method on the user type will return a string as the type of ID, which is available in the ordered constraint. We can also define concrete types like structs that use generics. So here, we are defining a Store struct type that has two constraints, K, which is the Ordered constraint, and M, which is the Model we…
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.