Lua Fundamentals Training Course

Overview of Lua

• Brief historical background
• Objectives, features, and limitations of Lua
• Accessing Lua documentation and tutorials
• Installing the Lua interpreter
• Configuring and utilizing LuaRocks

Core syntax and meaning

• Variable identifiers
• Comments and block comments
• Global variables and strict mode enforcement
• Local variables
• Standalone scripts and command-line arguments
• Compilation units, chunks, expressions, and semicolons

Primitive types and structural data

• Core types: nil, boolean, number, string
• Object types: function, userdata, thread, table
• Reference objects versus primitive values
• The central role of tables in Lua

Understanding tables and their flexibility

• Tables used as associative arrays
• Tables as numeric arrays or sequences

Core control flow

• Conditional logic: if, then, elseif, else, end
• While loops
• Repeat loops
• Basic for loops

Managing errors

• Distinguishing return values from exceptions
• Converting return values into exceptions
• Converting exceptions into return values
• Error levels

Practical applications

• Evaluating polynomials
• Breadth-first search algorithms
• Supplementary exercises

Advanced function concepts

• Named arguments
• Object-oriented method calls
• Closures
• Currying
• Tail calls
• Multiple assignment and return values
• Variable arguments (varargs)

Iterators and co-routines

• The generic for loop
• Stateless versus stateful iterators
• Distinguishing between iterators and co-routines

Metatables and metamethods

• The set data structure example
• The __tostring metamethod
• Arithmetic operations via metamethods
• The __index and __newindex metamethods
• The __len metamethod

Modules and packaging

• Utilizing existing modules
• Developing custom modules
• Grouping modules into packages

Object-oriented programming

• Foundational OOP concepts in Lua
• Practical examples

Advanced language capabilities

• Weak tables
• Finalizers
• Compilation, evaluation, and dynamic loading