Introduction

Why Lua?

Lua is a lightweight, embeddable scripting language designed for extending applications. It powers game scripting (Roblox, World of Warcraft, LOVE2D), embedded systems, and configuration for tools like Neovim, Redis, and Nginx.

• Simple and elegant — Lua has a tiny core with just 8 basic types and one data structure (the table).
• Fast — LuaJIT is one of the fastest dynamic language runtimes ever built.
• Embeddable — Lua was designed from day one to be embedded in C/C++ applications.
• Tables are everything — arrays, dictionaries, objects, modules, and namespaces are all tables.

What You Will Learn

• Variables and types — dynamic typing with local declarations
• Strings — concatenation with .., the string library
• Control flow — if/elseif/else, while, repeat/until, numeric and generic for
• Functions — first-class functions, closures, variadic arguments
• Tables — arrays (1-indexed), dictionaries, metatables for OOP
• Modules — organizing code with table-based modules
• Coroutines — cooperative multitasking via iterator patterns

Resources

• Lua Official Documentation — the official language reference manual.
• Programming in Lua by Roberto Ierusalimschy — the definitive book on Lua.
• Lua Users Wiki — community-maintained tutorials and code samples.
• LOVE2D — a popular 2D game framework that uses Lua.
• Exercism Lua Track — practice problems with mentoring.