Structs

A struct groups related fields into one type.

Think of it as a form with labeled boxes.

One form can hold a name, an age, and a city together.

Use structs for people, products, settings, or any named pieces of data.

Defining a struct

Declare a type with type Name struct { ... }.

Each field has a name and a type.

Exported fields start with a capital letter so other packages can see them.

Creating values

Create values with field names for clarity.

You can also list values in order if you fill every field.

Named fields are easier to read.

Updating fields

Access fields with a dot.

Put a new value in a field the same way.

Pointers to structs

With a pointer to a struct, you can still write p.Name.

Go follows the pointer for you.

That makes updates easy without writing (*p).Name every time.

Embedding

You can put one struct inside another.

Its fields can show up on the outer type.

That is called embedding. It feels like stacking forms.

Capitalize field names you want other packages to see.