Go learning path

Structs and Interfaces

Build your own types with structs, methods, pointers, interfaces, embedding, errors and generics.

7 lessons

Group related values into your own type with named fields.

Attach functions to a type and choose between value and pointer receivers.

Use & and * to share a value instead of copying it.

Describe behavior with an interface that any type can satisfy.

Reuse fields and methods by embedding one struct in another.

Return errors as values, wrap them with context and check them with errors.Is and errors.As.

Write one function or type that works with many types using type parameters.