resources:

• lua.org: programming in lua (first edition)

§ KEYWORDS

DECLARACTION
    local   function

LOGIC
    and     or  not

CONTROL
    for	    in  repeat  until   while   break
    do      if  else    elseif  then    return
    end

VALUE
    true    false   nil
    

§ tyles and values

basic types

nil

type of a single value, non-exist, anything undeclared, or effectively “deleted”

boolean

2 values true and false. conditionals consider false and nil to be false and anything else to be true. nil is false, 0 is true.

number

real numbers, double-precision floating point. There is no integer type in lua. lua can represent any long integer without rounding issues. Lua can be compiled to use other types for numbers.

    4     0.4     4.57e-3     0.3e12     5e+20

• string
• userdata
• function
• thread
• table