Go - Structs
Beginner 10/10
Teacher 10/10
Architect 10/10
Try it: Define a
Book struct with Title and Author, then print a value with fmt.Printf("%+v", b).Basics
type User struct{ ID int; Name string }
u := User{ID:1, Name:"Alice"}
Embedding
type Timestamps struct{ CreatedAt time.Time }
type Customer struct{
Timestamps
ID int
}
Tags
type Product struct{
Name string `json:"name"`
}
Common errors
- Forgetting field names in composite literals when order changes—prefer keyed fields.
- Exporting fields: only capitalized field names are exported for JSON and other packages.
Practice
- Add JSON tags to your
Bookstruct and serialize it.
Quick quiz
- What’s struct embedding and why use it?