Golang Struct Embedding | Programming Tutorials

Introduction

This challenge aims to test your understanding of struct embedding in Golang. You will be required to create a struct that embeds another struct and access its fields and methods.

Skills Graph

%%%%{init: {'theme':'neutral'}}%%%% flowchart RL go(("`Go`")) -.-> go/ObjectOrientedProgrammingGroup(["`Object-Oriented Programming`"]) go/ObjectOrientedProgrammingGroup -.-> go/struct_embedding("`Struct Embedding`") subgraph Lab Skills go/struct_embedding -.-> lab-15434{{"`Embedding Structs in Golang`"}} end

Struct Embedding

Create a struct named container that embeds a struct named base. The base struct should have a field named num of type int and a method named describe() that returns a string. The container struct should have a field named str of type string. The container struct should be able to access the num field and describe() method of the base struct.

Requirements

The base struct should have a field named num of type int.
The base struct should have a method named describe() that returns a string.
The container struct should have a field named str of type string.
The container struct should embed the base struct.
The container struct should be able to access the num field and describe() method of the base struct.

Example

$ go run struct-embedding.go
co={num: 1, str: some name}
also num: 1
describe: base with num=1
describer: base with num=1

Summary

In this challenge, you learned how to embed a struct in another struct and access its fields and methods. You also learned how to bestow interface implementations onto other structs using struct embedding.

Embedding Structs in Golang