Lua Fundamentals Training Course

Getting Started with Lua

• A brief historical overview
• Design objectives, key features, and non-goals of Lua
• Accessing Lua documentation and tutorials
• Installation of the Lua interpreter
• Configuring and utilizing LuaRocks

Fundamental Syntax and Semantics

• Identifier rules
• Single-line and block comments
• Managing global variables and enforcing strict mode
• Declaring local variables
• Creating standalone programs and handling arguments
• Understanding compilation units, chunks, expressions, and semicolons

Data Types and Structures

• Primitive types: nil, boolean, number, and string
• Object types: function, userdata, thread, and table
• Distinguishing between references/objects and basic values
• The central role of tables in Lua

Tables and Their Versatility

• Using tables as associative arrays
• Using tables as numeric arrays or sequences

Core Control Flow

• Conditional logic: if, then, elseif, else, end
• The while loop structure
• The repeat loop structure
• The basic for loop

Managing Errors

• Comparing return values against exceptions
• Transforming return values into exceptions
• Converting exceptions back to return values
• Understanding error levels

Practical Examples

• Evaluating polynomials
• Implementing breadth-first search
• Supplementary practice tasks

Advanced Function Concepts

• Using named arguments
• Object-oriented invocation styles
• Working with closures
• Techniques for currying
• Tail calls and their implications
• Handling multiple assignments and return values
• Utilizing varargs

Iterators and Coroutines

• The generic for loop mechanism
• Contrasting stateless and stateful iterators
• Distinguishing between iterators and coroutines

Metatables and Metamethods

• Implementing a set using metatables
• The __tostring metamethod
• Overriding arithmetic operations
• The __index and __newindex metamethods
• The __len metamethod

Modules and Packaging

• Utilizing existing modules
• Building custom modules
• Structuring modules into packages

Object-Oriented Programming

• Foundational building blocks of OOP in Lua
• Practical implementation examples

Advanced Language Features

• Managing weak tables
• Working with finalizers
• Processes for compilation, evaluation, and loading