Lua by Example: Values

Lua has eight basic types: nil, boolean, number, string, userdata, function, thread, and table. Here are a few examples.
Strings, which can be concatenated together with `..` and can be enclosed in double quotes `"` or single `'`	print("lua" .. 'lang')
Numbers and math	print("1+1 =", 1+1) print("7.0/3.0 =", 7.0/3.0)
Booleans, with boolean operators	print(true and false) print(true or false) print(not true)
Parenthesis can be used to control order of operations	print(true or (true and false))
Note that nil is false	if nil then print('nil is not true') else print('nil is false') end

$ lua values.lua
lualang
1+1 =    2
7.0/3.0 =    2.3333333333333
false
true
false
true
nil is false

Next example: Variables.