Programming In Lua

The basics

Getting started

chunks
interactive shell
dofile function
identifiers
short & long comments
default value of variables
basic types
type function
nil
removal of a variable
boolean
logical operators

Numbers

two numeric subtypes
arithmetic operators
relational operators
the math library
conversion between numeric subtypes

Strings

the string library
length operator
concatenation operator
escape sequences
long strings
the utf8 library