LearningTech

Go Basics

Go Struct

Description

A struct is a collection of fields. It is useful for grouping data together to form records. Go is object-oriented but uses structs and methods instead of classes.

Pros & Cons

✅ Pros

  • Lightweight objects.
  • Memory layout control.

❌ Cons

  • No Inheritance: Go uses composition instead of inheritance.

When to Use

Defining object models.

Example

Defining and using structs.

type Vertex struct {
    X int
    Y int
}

func main() {
    v := Vertex{1, 2}
    v.X = 4
    fmt.Println(v)
}

Best Practices

Use capitalized field names (e.g., `X` vs `x`) to export them to other packages.

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