Struct Embedding in Go
From the Go cheat sheet · Data Types & Structures · verified Jul 2026
Struct Embedding
Composition via embedding structs and interfaces
go
// Embed struct for composition
type Address struct {
City string
Country string
}
type Person struct {
Name string
Address // Embedded (promoted fields)
}
p := Person{
Name: "Alice",
Address: Address{City: "NYC", Country: "US"},
}
fmt.Println(p.City) // "NYC" (promoted)🎯 Go uses composition over inheritance via embedding
💡 Embedded fields and methods are promoted to outer struct
📌 Access via p.City or p.Address.City — both work
⚡ Interfaces can embed other interfaces for composition
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