Structs

Define a struct to group together related pieces of data.

type Person = {
    first_name: string,
    last_name: string,
    age: int,
}

Create an instance of a struct by calling its constructor, which is a function that shares the same name as the struct.

let frank = Person("Frank", "Smith", 34)

Access the fields of a struct and modify them by using dot . syntax.

let fullname = frank.first_name & " " & frank.last_name
// fullname = "Frank Smith"
frank.age := frank.age + 1
// age = 35

Structs can have generic type arguments.

type Ref<'T> = {
    value: 'T
}