Luau the first coding language I learned: Type intersections for beginners

Table of Contents

• Introduction
• What is a type intersection
• Explained like your 5
• Notes

Introduction

This is the first post in the luau series explaining how to use a type intersection.

What is a type intersection

A type intersection in luau is Luau's AND operator but for types, an example is:

local X = workspace:WaitForChild("X") :: Part & BasePart & Instance

local TypeAnnotation: Part & BasePart & Instance = workspace:WaitForChild("TypeAnnotation") -- Type annotation

You seperate the types and to use the type intersection between types use &

Explained like your 5

A type intersection is like when your mom asks you to get a type of book that has two genres: Action and Fiction, Thats basicaly what it is but in real life

Notes

NOTE: Const has been released in luau(roblox lua) for some developers but it lacks syntax highlighting and autocomplete