2_BindingsScopes.md

Let binding definition

let a = 123;

let basicFunction = (a,b) => a + b;

Bindings are immutable

They can be muted only by using ref which is not actually mutating. You can read more here

shadowing

let a = "test"; let a = "other test";

Mutation

let foo = ref(5);
let five = foo^;
foo := 6;

Naming conventions

Everything is camel-cased

Type annotation

You can annotate with a type

let a: int = 12;

Types

Types can be aliased in the following manner:

type test = int;

Block Scope

let greeting = "Greeting";
let hello = {
  let greeting = "Hello";
  let world = "World"
  greeting ++ world;
};

print_string(hello);